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Journal of Oral Science Research

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    28 March 2019, Volume 35 Issue 3 Previous Issue    Next Issue
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    Visualization Research on Extracellular Vesicles
    CHEN Gang, XIA Hou-fu
    2019, 35(3): 203-207.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.001
    Abstract ( 381 )   PDF (960KB) ( 328 )  
    Extracellular vesicles (EVs) are involved in the regulation of many pathophysiological processes by mediating intercellular communication. In-depth study of the biological behaviors and functions of EVs and their association with the development of diseases are the main research purpose at present. It will not only help to reveal the pathogenesis of related diseases, but will also facilitate the development of novel liquid biopsy biomarkers for early diagnosis and prognosis. However, current research methods for EVs, especially in regard to visualization of EVs, are still quite limited. This has hampered the better understanding of EVs and meanwhile posed great challenges for their potential applications. Therefore, developing reliable technologies to achieve the visualization of EVs' biological behaviors and functions is currently the frontier hot spot and urgent need in the research field of EVs. This article aims to briefly introduce the present visualization research on EVs, and prospect its future directions.
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    Research Progress in Oral Diabetic Osteopathy and Drug Control
    SU Zhen-yu, ZHANG Bin
    2019, 35(3): 208-211.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.002
    Abstract ( 302 )   PDF (789KB) ( 307 )  
    Diabetic bone disease is a devastating complication of diabetes, and its incidence rate has been increased year by year. Chronic hyperglycemia caused by diabetes can increase the risk of systemic osteoporosis and fractures. In the oral cavity, it can manifest as periodontitis, loss of alveolar bone, and implant bone failure. At present, its pathogenesis is not completely clear. The study of oral diabetic bone disease focuses more on the choice of drug therapy. In the actual clinical application, drugs should be selected according to the adverse reactions of the drugs and the severity of the disease, and the appropriate dose and treatment course should be determined so that the patient can obtain the best therapeutic effect.
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    Clinical Application Progress of Autogenous Tooth Bone Graft Material in Repairing Alveolar Bone Defect.
    LI Ji-yin, HE Ping
    2019, 35(3): 212-214.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.003
    Abstract ( 355 )   PDF (764KB) ( 355 )  
    Alveolar bone defect or bone deficiency is a common situation met in oral implant surgery. Using bone graft material or bone augmentation is a good way to solve this problem. Because of some drawbacks of autogenous bone graft material, the autogenous tooth bone graft material (AutoBT) receives widespread favor by both clinicians and patients recently. This article reviews the clinical application of AutoBT.
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    Research Progress on Age Estimation Based on Cementum Annulation.
    WEI Qiu-jv, LI Bing
    2019, 35(3): 215-217.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.004
    Abstract ( 248 )   PDF (764KB) ( 338 )  
    Tooth cementum annulation is continuous and rhythmic plate layers during the development process of cementum formation. There was interval layer between plate layers, which forms a shape like tree ring as light and dark rings. The number of cementum annulation can be calculated by observing tooth longitudinal grinding using transmission electron microscopy and optical microscope, which is changed along with the age and periodontal disease. Cementum annulation can be used as a method to estimate age. It has been widely applied in many fields, such as forensic dentistry, archaeology, and anthropology. This article will discuss the research progress on the tooth cementum annulation from four aspects: the count of the cementum ring, the factors that affect the number of the cementum, the application of the cementum ring, and the comparison of predicting age by cementum and bone.
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    Research Progress of Dental Pulp Derived Stem Cells in Oral Craniofacial Tissue Engineering
    HUANG Wen-yan, GE Li-hong, ZENG Su-juan
    2019, 35(3): 218-220.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.005
    Abstract ( 263 )   PDF (775KB) ( 392 )  
    Recent evidences have shown that a variety of mesenchymal stem cells located in dental pulp-derived tissues such as the dental pulp and apical papilla. It is known that these stem cells have the potential to differentiate into several cell types, including odontoblasts, osteoblasts, and chondrocytes. These stem cells can be isolated and grown under defined tissue culture conditions, and are potential cells for use in tissue engineering, including dental tissues and bone regeneration. This article reviews the osteogenic properties of dental pulp stem cells, osteogenic system in vitro, and their applications in tissue engineering.
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    Complexity of Obstructed Root Canal Treatment in Elderly Patients
    JIANG Wen-kai, LV Hai-peng, ZHANG Ya-qing
    2019, 35(3): 221-223.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.006
    Abstract ( 325 )   PDF (754KB) ( 534 )  
    Due to age-related changes, as well as long-term teeth attrition, wedge-shaped defects, chronic caries, periodontal disease, the root canals of elderly patients' teeth turn to be small, narrow and even calcification. In addition, the special psychological and physiological characteristics of the elderly patients and their complexity of the oral condition make the root canal treatment of blocked root canals is quite difficult for young dentists. Therefore, the purpose of this paper is to preliminarily discuss the following situations: the etiology of root canal obstruction, the diagnosis of root canal obstruction, and the special treatment of root canal obstruction in the elderly.
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    Research Progress of Saliva in Diagnosis of Geriatric Diseases
    LIAN Qi-si, Wu Hong-kun
    2019, 35(3): 224-226.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.007
    Abstract ( 228 )   PDF (777KB) ( 282 )  
    Salivary diagnostics is an emerging field in the diagnosis of diseases. Saliva reflects the physiologic state of body, including emotional, endocrinal, nutritional, and metabolic variations. The collection of samples is noninvasive, safe and inexpensive, thus it has potential advantages in the diagnosis and treatment of diseases in the elderly. This article focuses on the application of saliva in oral and systemic diseases in geriatric population. It has a huge potential and will be converted into point of chair testing (POCT), making contributions for the advent of the era of personalized medicine and promote diagnostic technology of diseases for the elderly.
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    Complications and Management of Maxillary Sinus Floor Elevation in Elderly Patients
    YANG Shi-hui, ZHAO Jing-hui
    2019, 35(3): 227-229.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.008
    Abstract ( 265 )   PDF (773KB) ( 483 )  
    Maxillary sinus floor elevation is an effective method to solve the deficiency of vertical bone height in the maxillary posterior tooth area in elderly patients. However, a series of complications may affect the effect of implantation treatment. Therefore, proper prevention and management of these complications are important for increasing the long-term success rate of implants. This article reviews the prevention and management of complications such as intraoperative hemorrhage, perforation of maxillary sinus mucosa, maxillary sinusitis, concussion, and benign paroxysmal positional vertigo.
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    Research Status of Treatment Methods for Root Caries in the Elderly.
    ZHAO Shuang, LIU Yu-yan
    2019, 35(3): 230-233.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.009
    Abstract ( 285 )   PDF (782KB) ( 256 )  
    Root carie is a common oral disease in the elderly and its incidence has been increased year by year. Because the gum of the elderly has receded, the root face is exposed and the volume of saliva secretion is reduced, which make the elderly more susceptible to root caries. With the acceleration of population aging in our country, the oral problems of the elderly should be taken seriously by the society. This review summarizes the main methods and advances in the prevention and treatment of root caries.
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    A Review on Research of Caries Prevention in the Elderly
    WANG Xin, DU Yi
    2019, 35(3): 234-237.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.010
    Abstract ( 233 )   PDF (825KB) ( 304 )  
    The population of the world is aging. With the development of the economy and the continuous improvement of medical standards, a greater proportion of older people are retaining increasing numbers of natural teeth. This dental longevity is accompanied by an increased frequency of exposed root surfaces as a result of periodontal diseases, mechanical injury, surgical treatment, or a combination of these factors, which, combined with some situations common to ageing, such as reduced salivary flow due to diseases or drugs and the inability to perform adequate oral hygiene, leading to biofilm accumulation on tooth surfaces, enhance the risk of root caries occurrence .Root Caries is a common and frequently-occurring disease in the elderly. The occurrence of root caries has an obvious impact on the elderly health and is one of the most reasons of tooth loss in the elderly. The prevention and treatment to root caries is an important part of the oral heal care in the elderly, and substantial research related to it has been conducted. But restorative management of root caries is a challenge in view of the proximity to the gingival margin, difficulties of visibility, moisture control, proximity of the pulp, and the high organic content of the dentine. So, for the root caries in the elderly, the most important thing is prevention. This study aims to provide a review on the prevention of root caries in the elderly.
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    Relationship between Distribution of Age and Tumor Biomarkers in Patients with Oral Squamous Cell Carcinoma
    WANG Xiao-le, JIA Rong
    2019, 35(3): 238-241.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.011
    Abstract ( 243 )   PDF (788KB) ( 327 )  
    Objective: To investigate the relationship between the distribution of age and tumor biomarkers in patients with oral squamous cell carcinoma. Methods: The data of patients with oral squamous cell carcinoma were collected from TCGA database and Hospital of Stomatology, Wuhan University. The correlation analysis was conducted between the distribution of age and the expression of p53, CCND1, EGFR, and SOX2. Further correlation analysis was conducted between p53 gene mutation and the distribution of age. Results: Patients with age between 51 and 70 years were the most affected population in oral squamous cell carcinoma. No significant difference on the expression of CCND1, EGFR, and SOX2 was found among different age groups. However, a 1.5- to 1.7-fold increased expression of EGFR was observed in patients younger than 51 years old. Patients with age between 61 to 70 years showed significantly lower expression of p53 than other age groups. No significant difference on the incidence of p53 mutation was found among age groups. However, patients with wild type p53 had significantly higher levels of p53 mRNA than those with mutant p53. Conclusion: Patients with age between 51 and 70 years are the most affected population in oral squamous cell carcinoma. Patients with age between 61 to 70 years showed significantly lower expression of p53 than other age groups.
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    Influence Factor on Prognosis of the Elderly with Oral Squamous Cell Carcinoma in Fujian Area
    WU Jun-feng, SHI Bin, CAO Yu-jie, CHEN Fa, CAO Rong-kai, ZHANG Shi-lei, HUANG Yue
    2019, 35(3): 242-245.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.012
    Abstract ( 236 )   PDF (1049KB) ( 185 )  
    Objective: To explore the influence factor on prognosis of the elderly with oral squamous cell carcinoma (OSCC) in Fujian area. Methods: From January 2004 to Jan 2018, a total of 288 elderly patients with pathologically confirmed OSCC were recruited in a hospital of Fujian. The clinical and follow-up data of all patients were collected to explore the influence factor on prognosis of the elderly with OSCC. Survival rate and cumulative incidence were calculated using the Kaplan-Meier method and the cumulative risk model. The differences of two groups were compared by Log rank and Gray test. The Cox proportional hazards regression model and the Fine-Gray model were performed to estimate the prognosis factors among elderly OSCC patients. It was also stratified by BMI to assess the association between treatments and the prognosis of the elderly with OSCC. Results: The Cox proportional hazards regression model indicated that preoperative dentures (HR=1.74,95%CI:1.11,2.71); T3-4 stage (HR=3.64,95%CI:1.32,10.01); N1 and N2-3 (HR=2.78, 95%CI:1.36,5.64) and (HR=1.96, 95%CI: 1.01,3.80); poor differentiation (HR=2.25, 95%CI: 1.27,3.99). The Fine-Gray regression model indicated that the female (SHR=0.58, 95%CI: 0.36,0.94); N1 and N2-3 (SHR=2.29, 95%CI: 1.29,4.05) and (SHR=4.42, 95%CI: 2.48,7.85); M1 stage (SHR=2.977, 95%CI: 1.08,8.20); surgery combined chemoradiotherapy (SHR=2.14, 95%CI: 1.26, 3.65). The stratification analysis demonstrated that surgery combined with radiotherapy increased the risk among BMI <18.5 elderly OSCC patients. Conclusion: Preoperative dentures, T stage, N stage, M stage, histologic grade, and treatment are risk factors for elderly OSCC.
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    Three-dimensional Finite Element Analysis of Short Implant Supported Mandibular Second Molar with Dramatically Absorbed Alveolar Bone
    CHEN Jun-liang, LIU Xu-lin, ZHANG Xiao-yue, TIAN Xin, HE Yun
    2019, 35(3): 246-250.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.013
    Abstract ( 242 )   PDF (2079KB) ( 283 )  
    Objective: To lay a theoretic basis for the application of short implant supporting the mandibular second molar with dramatically absorbed alveolar bone. Methods: Based on the image data, six models with different ways of restoration were created. Vertical load of 150N was applied on the prosthesis. The displacement of implant and the stress and strain of bone were compared. Results: Compared with long implant models, the short implant model shown the lower displacement of implant, the lower stress of cortical bone, and the higher stress of spongious bone. The maximum displacement of implant, the stress of cortical bone, and the stress of spongious bone decreased as the crown diameter decreased. Conclusion: From a biomechanical point of view, it can be concluded that the use of short implant to support the mandibular second molar with dramatically absorbed alveolar bone is a reliable treatment option.
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    Application of Bone Expansion Technique in the Elderly Patients with Deficiency of Alveolar Bone Width
    OU Xiao-fei, PANG Jie, HU Tu-qiang
    2019, 35(3): 251-253.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.014
    Abstract ( 199 )   PDF (1307KB) ( 212 )  
    Objective: To evaluate the effect of alveolar bone expansion technique in elderly patients with the deficiency of alveolar bone width. Methods: 15 elderly patients of teeth loss with the deficiency of alveolar bone width were chosen. Preoperative CBCT showed that the widths of the alveolar bone were 3.0-5.0 mm. Applying bone expansion technique,35 implants were instantly embedded. The implants case was observed immediately after surgery. Follow-up for 1 week after operation was applied to observe the wound healing. CBCT was reexamined 6 months after surgery to observe the osseointegration of implants. Results: The patients had no discomfort during the operation and no obvious adverse reactions after the operation. The average width of alveolar bone after bone expansion was 6.5 mm. The average bone width at the second stage of surgery 6 months later was 5.9 mm, an average increase of 2.2 mm compared with the preoperative width. Conclusion: Compared with traditional surgical methods, bone expansion technology has less damage to patient and is minimal invasive.It’s suitable for the elderly patients with deficient alveolar bone.
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    Comparative Study on Wear and Friction Properties of Natural Aged Teeth with Three Dental Restorative Materials
    ZHANG Jie
    2019, 35(3): 254-257.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.015
    Abstract ( 245 )   PDF (996KB) ( 159 )  
    Objective: To compare the friction and wear properties of natural aged teeth with dental restorative materials and to analyze the friction and wear mechanism. Methods: In vitro friction and wear tests were performed between natural teeth collected from patients over 60 years old and pure titanium, zirconia, and glass-ceramic. The surface wear morphology was observed by scanning electron microscope, the surface hardness was measured by micro-hardness tester, and the wear amount was obtained by electronic balance. Results: There were significant differences between three materials and the enamel and dentin (P<0.05). The wear of pure titanium was the closest to that of enamel, and the wear of dentin was significantly higher than that of enamel and three kinds of restorative materials. The wear mechanism of the aged natural tooth enamel was mainly fatigue wear, whereas the dentin was mainly exposed to abrasive wear. Pure titanium was mainly exposed to adhesive and abrasive wear. Abrasive and adhesive wear mainly occurred with glass-ceramic while zirconia was largely exposed to abrasive wear. Conclusion: The wear resistance of pure titanium matches the enamel of natural teeth in old age. The wear resistance of natural teeth enamel is much better than that of dentin. In clinic, according to the wear condition of natural teeth in jaw, it is suggested to rationally select restorative materials, avoiding the excessive wear of natural teeth, especially dentin.
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    Clinical Study on Minimally Invasive Maxillary Sinus Elevation with Simultaneous Implantation in Elderly Patients
    YU Wan-qi, YANG Shi-hui, ZHOU Zhe, ZHOU Yan-min, ZHAO Jing-hui
    2019, 35(3): 258-261.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.016
    Abstract ( 195 )   PDF (2593KB) ( 244 )  
    Objective: To observe the clinical effect of minimally invasive maxillary sinus floor elevation with simultaneous implantation in the elderly patients. Methods: Fifty-two cases of maxillary posterior teeth missing with severe bone height insufficiency were selected from January 2016 to January 2018 in our department. Considering the specific situation of poor tolerance of the elderly patients, in the missing tooth area, the maxillary sinus floor elevation via the alveolar ridge crest approach was adopted, and bone substitute and platelet-rich fibrin were combined to guide bone tissue regeneration, and implant was implanted at the same time. Results: Through clinical study and follow-up observation, the implantation repair effect of this treatment method was good. The implants had obtained stable osseointegration, the implant denture had good function, and the patients were satisfied. Conclusion: For the elderly patients, under the premise of strictly mastering the surgical indications and operating skills, the application of minimally invasive maxillary sinus floor elevation and simultaneous implantation can be considered.
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    Effects of Hyaluronic Acid Injection Combined with Masticatory Muscle Exercise on Geriatric Temporomandibular Joint Osteoarthrosis
    CAI Heng-xing, KE Jin, MENG Qing-gong, LONG Xing
    2019, 35(3): 262-265.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.017
    Abstract ( 201 )   PDF (774KB) ( 162 )  
    Objective: To observe the effects of hyaluronic acid (HA) injection combined with masticatory muscle exercise on geriatric temporomandibular joint osteoarthrosis. Methods: The subjects were recruited from Stomatological Hospital of Wuhan University. After clinical and X-ray examination, 60 patients were divided into the experimental group and the control group. The experimental group received intra-articular injection of HA in combination with masticatory muscle exercise, and the control group received the masticatory muscle exercise only. The subjects were followed after 3 months and 6months. Clinical parameters such as joint pain (VAS), maximal mouth opening (MMO), and joint noise (JN) were recorded at each visit. Comparative analysis was then performed. Results: No serious complications were observed in the treatment process. After treatment, there were significant improvements in the VAS and MMO in the experimental group and control group, and improvement in the JN in the control group (P<0.05). There was significant improvement for all the clinical scores in the experimental group compared with the control group (P<0.05). Conclusion: Intra-articular injection of HA combined with masticatory muscle exercise is a safe, effective method in the treatment of geriatric temporomandibular joint osteoarthrosis, which is better than masticatory muscle exercise only.
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    Periodontal Health Status and Related Risk Factors Analysis in Middle Aged and Elderly People in Guangxi
    CHEN Shao-yong, LIU Qiu-lin, CHEN Bo-lin, WU Min-qiong, WU Shan-shan, ZENG Xiao-juan, CHEN Wen-xia
    2019, 35(3): 266-270.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.018
    Abstract ( 198 )   PDF (785KB) ( 224 )  
    Objective: To describe the periodontal health status among people aged 35-74 and explore the risk factors for periodontitis. Methods: A stratified multistage randomly sampling design was applied to obtain 3 age groups samples. Gingival bleeding, dental calculus, periodontal pocket, and attachment loss were checked by using CPI probe according to the Guideline for the fourth National Oral Health Survey. Data entry was performed using Epidata 3.1 software and statistical analysis was performed using SPSS 22.0 software. Results: A total of 651 samples were participated in this study, and mean age were 55.78 year old (SD 12.54), and 50% were females. The prevalence of gingival bleeding was 92.5% and 95.9% for dental calculus, the prevalence of shallow periodontal pocket, deep periodontal pocket, and attachment loss were 37.9%, 5.7%, and 48.7%, respectively. The prevalence of periodontitis was 38.2%, and the univariate analysis showed that the periodontitis was associated with age, gender, and smoking (P＜0.01). In the multivariate logistic regression analysis, the risk factor of periodontitis was who did not have regular oral examination for nearly 1 year (P=0.043). Conclusion: Periodontitis has the potential to impact the oral health and general well-being of middle aged and elderly people. Preventive dental care made available to adults will improve their oral health status.
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    Analysis of Related Factors of Periodontal Diseases in Oral Examination of Middle-aged and Elderly People
    MIAO Fang, ZHANG Yun, ZHANG Wei-pin, GUO Yun-fei, CHEN Zhi
    2019, 35(3): 271-273.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.019
    Abstract ( 246 )   PDF (752KB) ( 244 )  
    Objective: To summarize the related factors by investigating the occurrence of periodontal diseases in oral periodontal examination. Methods: 2581 health examiners from June 2015 to June 2017 were selected. There were 1249 males and 1332 females, aged from 45 to 82 years. All the subjects were investigated with oral health knowledge questionnaire, and routine oral health examinations were conducted by oral physicians in our hospital. The prevalence of periodontal diseases was analyzed, and the incidence of oral periodontal diseases was studied with questionnaire. Results: The detection rate of periodontal disease was 91.36. Among them, 2275 cases were detected by odontolith (88.14%), 1096 cases were gingival hemorrhage (42.46%), and 1145 cases were periodontitis (44.36%). The factors of personal oral hygiene, orthodontic treatment or wearing denture, bacterial virus infection, and endocrine state were analyzed according to the results of questionnaire and inquiry. Psycho-social factors were the main factors that affected the occurrence of periodontal diseases, which were associated with the occurrence of oral periodontal diseases. Conclusion: The periodontal diseases, such as calculus, periodontitis, and gingival bleeding, are common in 2581 cases. They have the characteristics of high incidence and complicated condition. Clinic and patients should pay more attention to their periodontal health, improve their oral hygiene habits, actively avoid the occurrence of high-risk factors, and maintain periodontal health.
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    Short-term Clinical Effect of Admira Fusion and BEAUTIFIL Ⅱ in Restoration of Wedge-shaped Defects in Middle-aged and Senior Patients
    ZHANG Kai-ying, YU Ying-xin, MO Jia-yao, YAN Wen-juan
    2019, 35(3): 274-278.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.020
    Abstract ( 204 )   PDF (787KB) ( 223 )  
    Objective: To evaluate the short-term clinical effect and related influencing factors of Admira Fusion and BEAUTIFIL Ⅱ resin used for moderate wedge-shaped defects in senior patients. Methods: Fifty cases of patients, between 50 to 80 years old, with moderate wedge-shaped defects were selected from September 2016 to March 2017 as research objects. They were randomly divided into two groups and were treated with Admira Fusion (Group A) and BEAUTIFIL Ⅱ (Group B), respectively. The repair success rate, the edge sealing rate, the rough surface rate, the color coordination rate, the Q-H modified plaque index, and related influencing factors were followed up. The relevant clinical data were analyzed. Results: Twelve months after restoration, the success rate of Group A (96%) was significantly higher than Group B (84%) (P＜0.05). Twelve months after restoration, the edge sealing rate and the rough surface rate of Group A were 96% and 4%, respectively. While those of Group B were 84% and 16% (P＜0.05). Univariate analysis showed that the success rate of restoration was correlated with oral hygiene habits, diet, the tooth position, and chewing habits (P<0.05). Conclusion: Admira Fusion nano-resin to repair moderate wedge-shaped defects of middle-aged and senior patients has indicated better marginal sealing and excellent color match, which is worthy of wide clinical application. Thus Admira Fusion should be the preferred choice for senior patients with moderate wedge-shaped defects.
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    Investigation on Prevalence of Endodontic Disease in the Elderly
    TANG Ye, SHI Bi, YANG Xian-rong, WU Tian-rui
    2019, 35(3): 279-281.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.021
    Abstract ( 232 )   PDF (739KB) ( 328 )  
    Objective: To investigate the endodontic diseases of the elderly in our hospital, and to provide reference for future prevention. Methods: From August 2016 to August 2018, the patients aged 60 and over 60 who visited our hospital for endodontic diseases were classified and analyzed statistically. Results: Pulpitis, apical periodontitis, tooth defect, and dental caries were the top four category diseases, in which the incidence of pulpitis and apical periodontitis was close. As the main cause of pulpitis and apical periodontitis, the prevalence of dental caries was much lower than the former. Elderly patients accounted for 12% of the total annual patients, 28% of which were hypertension and diabetes. Conclusion: The awareness of diseases prevention in the elderly patients is poor. The patients more often seek medical advice after pain occurs. In the future, the preventive education of oral diseases among the elderly should be strengthened, with aim to reduce physical pain and economic losses.
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    Study on Dental Related Behaviors among Elderly Stroke Patients
    LIU Zheng, WANG Yue, YUAN Dong, GUO Cui, CHEN Xi, ZHANG Qian-qian, SONG Dan-dan
    2019, 35(3): 282-285.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.022
    Abstract ( 216 )   PDF (781KB) ( 190 )  
    Objective: To understand the behaviors of oral care and dental attendance among elderly stroke patients, and to explore their correlation with general function status. Methods: Participants' oral care and dental attendance behaviors etc. were collected through questionnaires. Montreal Cognitive Assessment (MoCA), Katz activities of daily living scale and Lawton instrumental activities of daily living scale were used to assess the overall functional status of the participants. Results: A total of 207 elderly stroke patients were included. The proportion of teeth brushing two times a day was 49.8%. The proportion of dental attendance within one year was 29%. After adjusting the covariables, it was found that teeth brushing two times a day was related to MoCA score ≥ 20(OR=3.417; 95%CI: 1.848-6.320) and Lawton score ≥ 13 (OR=3.049; 95%CI: 1.665-5.584). Conclusion: Oral care and dental attendance behaviors in elderly stroke patients are generally poor, and oral care behaviors become worse with general functional decline. In order to improve the oral care and dental attendance behaviors, oral health education should be given to elderly stroke patients and their caregivers. For patients with poor general function, oral care help and oral screening should be provided.
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    Ordered Logistic Regression Analysis of Oral Cleaning Status and Influencing Factors in Severe Elderly Patients with Non-intubation
    MIAO Ji-feng, GUO Jia-ru, ZHOU Xing-yu, YANG Lin, XU Cai-cai, WANG Jing, CUI Miao, SHANG Lin-ping
    2019, 35(3): 286-290.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.023
    Abstract ( 274 )   PDF (795KB) ( 211 )  
    Objective: To understand the frequency and influence factors of oral cleansing in severe elderly patients with non-intubation in tertiary general hospitals before and after admission, and to provide reference for the development of post-hospital health education programs for elderly patients. Methods: A total of 284 non-intubated elderly patients in neurology and neurosurgery of 6 tertiary general hospitals in 6 cities of Shanxi Province were selected by convenient sampling method. The WHO oral health epidemiological survey program was used for questionnaire survey. Results: (1) Oral hygiene measures before admission: ≥ 2 times per day for brushing and gargle were 26.5% and 19.0%, respectively, and the use of wooden toothpicks, plastic toothpicks, and dental floss habits were 23.1%, 2.6%, and 1.9%, respectively. After admission, the correspondences were 16.0%, 23.9%, 17.2%, 1.5%, and 1.9%, respectively. (3) The frequency of brushing before and after admission was statistically significant (P<0.01). Ordered multivariate logistic regression analysis showed that the cultural level, economic level, and self-care ability score (activities of daily Living, ADL) had a significant effect on the frequency of oral cleansing in severe elderly patients with non-intubation after admission (P<0.05). Conclusion: The severe elderly patients with non-intubation are weakened before and after admission. The cultural level, economic level, and self-care ability score have significant influence on the frequency of brushing teeth after admission. The health education should focus on the elderly patients with low cultural level, low economic level, and low self-care ability.
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    Investigation on Oral Health Quality and Influencing Factors of 284 Elderly Patients with Non-intubation.
    MIAO Ji-feng, GUO Jia-ru, ZHOU Xing-yu, YANG Lin, XU Cai-cai, WANG Jing, CUI Miao, SHANG Lin-ping
    2019, 35(3): 291-295.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.024
    Abstract ( 237 )   PDF (791KB) ( 144 )  
    Objective: To investigate the oral health quality and influencing factors of elderly patients, and to provide reference for health education in hospitals. Methods: A total of 284 elderly patients with neurology and neurosurgery in 6 large-scale tertiary general hospitals in 6 cities of Shanxi Province were selected by convenient sampling method. The adapted WHO Oral Health Survey.5th version was used to investigate. The factors affecting the oral health quality of patients were analyzed by single factor analysis, Pearson correlation analysis, and multiple stepwise regression analysis. Results: (1) The mean score of oral health quality in elderly patients were 3.52±1.64; (2) The number of teeth, activities of daily living (ADL), and changes in patient role after admission were identified as the predictors of the oral health quality of elderly patients (P<0.05), which could explain 13.3% of the variance. Conclusion: The oral health quality of non-intubated elderly patients in this area is at a medium level, which is influenced by many factors, focusing on elderly patients with insufficient number of teeth, low self-care ability, and poor role transition after admission.
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    Comparative Analysis of Oral Health Behaviors in Severe Elderly Patients with Non-intubation before and after Admission
    MIAO Ji-feng, GUO Jia-ru, ZHOU Xing-yu, YANG Lin, XU Cai-cai, WANG Jing, CUI Miao, SHANG Lin-ping
    2019, 35(3): 296-300.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.025
    Abstract ( 227 )   PDF (859KB) ( 141 )  
    Objective: To investigate the oral health behaviors of severe elderly patients with non-intubation before and after admission. Methods: A total of 284 non-intubated elderly patients in neurology department and neurosurgical monitoring room of 6 third-grade general hospitals in 6 cities of Shanxi Province were selected by convenient sampling method. The WHO oral health epidemiological investigation program was used for questionnaire survey. Results: (1) Oral hygiene measures before admission: brushing and gargle were 71 (26.5%) and 54 (19.0%) ≥ 2 times per day; the use of wooden toothpicks, plastic toothpicks, and dental floss were 62 (23.1%), 7(2.6%), and 5 (1.9%), respectively; (2) Oral hygiene measures after admission: 43 (16.0%), 68 (23.9%), 46 (17.2%), 4(1.5%), and 5 (1.9%) respectively; (3) The frequencys of brushing, mouthwash, wooden toothpicks, plastic toothpicks, and dental floss in elderly patients before and after admission were statistically significant (P<0.01). Conclusion: The oral health behaviors of elderly patients are poor and are not improved after hospitalization. Conversely, behaviors other than sputum are significantly attenuated. It is necessary to improve the elderly patients’ oral health behavior and to see if they could improve the clinical outcomes.
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    Prevalence and Epidemiological Characteristics of Root Caries in the Elderly in Mainland China: A Systematic Review and Meta-Analysis
    SHEN Yao-chuan, ZHENG Xin, YE Yan-hui, CHEN Xin
    2019, 35(3): 301-306.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.026
    Abstract ( 276 )   PDF (1979KB) ( 364 )  
    Objective: To comprehensively assess the pooled prevalence and epidemiological characteristics of root caries in the elderly in China, and to provide basic information for the development of relevant oral prevention and health care plans. Methods: The epidemiological survey of Chinese elderly root caries was published from January 2000 to June 2018. A meta-analysis was used to calculate the pooled prevalence of root caries and epidemiological characteristics. Results: A total of 18 epidemiological reports on root caries in the elderly in different parts of mainland China were included, and 7160 patients with root caries were included. The overall caries rate was 33.4%. The male and female prevalence rates were 36.3% and 36.2% (P=0.534). The prevalence rates of urban and rural elderly were 31.3% and 31.8% (P=0.9435). The prevalence rates of the elderly in the southern and northern provinces were 39.1% and 30.7%, respectively (P=0.037). Conclusion: The pooled prevalence of root caries in Chinese elderly was about 33.4%. The epidemiological characteristics were that the root caries rate of the elderly in the southern provinces was higher than that of the elderly in the northern provinces. The pooled prevalence of root caries between gender (male and female) or place of residence (urban and rural) was not significant different.
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    Half-year Effect of Er-YAG in the Treatment of Periodontal Angular Bone Defect of Premolars in Elderly Patients: A Case Report
    ZHENG Jun-yuan, HE Li, HU Tu-qiang, WANG Mei-jun
    2019, 35(3): 307-308.  DOI: 10.13701/j.cnki.kqyxyj.2019.03.027
    Abstract ( 254 )   PDF (1281KB) ( 174 )  
    Objective: To evaluate the clinical effect of erbium laser in the treatment of periodontal vertical absorption zone. Methods: One week after basic periodontal therapy, Er-YAG was used to assist the treatment. Results: After the treatment, the periodontal condition was significantly improved, and the periodontal bone defect in the vertical direction was regenerated obviously. Conclusion: Er-YAG laser treatment can effectively control periodontal inflammation and promote the regeneration of periodontal bone defect.
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