Journal of Oral Science Research

Journal of Oral Science Research ›› 2018, Vol. 34 ›› Issue (10): 1062-1066.DOI: 10.13701/j.cnki.kqyxyj.2018.10.008

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Clinic Features and CBCT Presentation of Cracked Teeth.

YUAN Mei1, WANG Tie-mei1, CAO Ya1, SHEN Quan2, LIN Zi-tong1*.   

  1. 1. Department of Oral and Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China;
    2. Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China.
  • Received:2018-04-16 Online:2018-10-28 Published:2018-10-24

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Abstract: Objective: To study the clinic features and summarize the radiographic manifestation on the CBCT images of non-traumatic cracked teeth. Methods: 105 patients with 105 cracked teeth were collected in this study. The sex, age and position were evaluated on the CBCT images. Results: Of the 105 patients, 50.48% was females and 49.52% was male. The incidence of cracked tooth increased with age before 50 years old, the highest incidence (34.29%) was between 41 and 50 years old. 5 cases was located in the premolar region, the others all located in molar region. The first molar had the highest incidence (59.05%). Of 105 cracked teeth, 16 (15.24%) teeth presented incomplete root fracture and 4 (3.81%) presented complete root fracture on CBCT images. The others had no obvious root abnormality. Conclusion: Cracked teeth are often located in the first molar region. Most of the cracked teeth involved crown but not root fracture on CBCT images.

Key words: Cracked tooth, Cone beam CT, Cracked tooth involved crown