Study of Correlation between Soft Tissue Chin Morphology and Dento-maxillofacial Structure

doi:10.13701/j.cnki.kqyxyj.2021.10.010

Abstract

Abstract: Objective: To investigate the correlation between soft tissue chin morphology and dento-maxillofacial structure in skeletal class Ⅰ malocclusion without high angle. Methods: Forty patients with normal skeletal chin morphology were selected as the research objects, and the interferences of mandibular retrognathia and high angle were excluded (0<ANB<5°, SN-MP<40°). They were divided into normal chin morphology group and abnormal chin morphology group according to soft tissue chin morphology. Parameters related to sagittal and vertical pattern and dentition were measured respectively. Results: There was no significant difference in the parameters reflecting the sagittal pattern and mandibular morphology. Compared with the normal chin morphology group, the abnormal group exhibited decreased S-Go∶N-Me ratio (P<0.05), increased PP-MP and OP-MP (P<0.05) which negatively correlated with soft tissue chin morphology (d∶B’Mess) (P<0.05), and decreased SN-PP and L1-FH (P<0.05). Conclusion: The inclination of palatal plane is significantly related to soft tissue chin morphology. When the palatal plane shows a counterclockwise direction, the chin morphology worsens with increased dispersion of the maxilla and mandible.

Key words: chin morphology, soft tissue, cephalometrics, palatal plane

LU Yun, YU Shanshan, LAN Tingchao, ZHAO Bingjiao, MAO Yanmin, LIU Yuehua. Study of Correlation between Soft Tissue Chin Morphology and Dento-maxillofacial Structure[J]. Journal of Oral Science Research, 2021, 37(10): 910-913.

References

[1] Naini FB, Donaldson AN, McDonald F, et al. Assessing the influence of chin prominence on perceived attractiveness in the orthognathic patient, clinician and layperson [J]. Int J Oral Maxillofac Surg, 2012, 41(7): 839-846.
[2] Pişiren AB, Arman-Özç¹rp¹c¹ A, Tunçer Ni. Assessing the influence of chin prominence on profile esthetics: A survey study [J]. J Craniomaxillofac Surg, 2018, 46(4): 628-634.
[3] Gu Y, McNamara JA, Sigler LM, et al. Comparison of craniofacial characteristics of typical Chinese and Caucasian young adults [J]. Eur J Orthod, 2011, 33(2): 205-211.
[4] Khan AR, Fida M, Sukhia RH. Factors affecting changes in soft tissue profile after various treatment modalities for skeletal Class Ⅱ malocclusion: A cross-sectional study [J]. Int Orthod, 2019, 17(3): 497-450.
[5] 贾培增,吴威.不同垂直骨面型者的颏部形态[J].华西口腔医学杂志,2007,25(2): 142-144.
[6] Al-Khateeb SN, Al Maaitah EF, Abu Alhaija ES, et al. Mandibular symphysis morphology and dimensions in different anteroposterior jaw relationships [J]. Angle Orthod, 2014, 84(2): 304-309.
[7] Arruda KEM, Valladares-Neto J, Almeida GA. Assessment of the mandibular symphysis of Caucasian Brazilian adults with well- balanced faces and normal occlusion: the influence of gender and facial type [J]. Dent Press J Orthod, 2012,17: 40-50.
[8] Gómez Y, García-Sanz V, Zamora N, et al. Associations between mandibular symphysis form and craniofacial structures [J]. Oral Radiol, 2018, 34(2): 161-171.
[9] Macari AT, Hanna AE. Comparisons of soft tissue chin thickness in adult patients with various mandibular divergence patterns [J]. Angle Orthod, 2014, 84(4): 708-714.
[10] Gomez Y, Zamora N, Tarazona B, et al. Cross-sectional human study of soft tissue chin (STC) thickness in adult patients in relation to sex, facial pattern and skeletal class [J]. J Craniomaxillofac Surg, 2017, 45(8): 1205-1211.
[11] Tanikawa C, Takada K. Objective classification of nose-lip-chin profiles and their relation to dentoskeletal traits [J]. Orthod Craniofac Res, 2014, 17(4): 226-238.
[12] 葛晓磊,刘晔,刘春艳,等.不同牙合期的高角型骨性Ⅲ类患者颏部形态的研究[J].口腔医学研究,2018,34(4): 401-404.

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