Model Analysis of Anatomical Morphology Changes of Palatal Rugae Before and After Orthodontic Treatment

Abstract

LI, B.; TAE-GEON, K.; WU, X. ; HEE-MOON, K. ; KE-MING, Y. & XIU-PING, W.Model analysis of anatomical morphology changes of palatal rugae before and after orthodontic treatment. Int. J. Morphol., 35(4):1224Morphol., 35(4): -1229Morphol., 35(4): , 2017. SUMMARY:Model analysis was performed to identify palatal rugae anatomical morphology patterns, evaluate their individual-specific properties and stability before and after orthodontic treatments, and investigate their reliability in the use for individual identification from the perspective of forensic dentistry. Maxillary models of 70 patients were collected before and after orthodontic treatments, palatine images were taken under standard conditions. Pattern-based individual identification was performed through measuring some indices including changes in number, orientation, shape, and length of palatal rugae, as well as mesial and distal endpoint displacement of palatal rugae in the anteroposterior (AP) and mesiodistal (MD) direction. At the same time, maxillary models of 10 patients were randomly selected for individuality confirmation and the average rate of correct matches was calculated. palatal rugae anatomical morphology patterns were highly individual-specific. Palatine of the same pattern were not found before or after orthodontic treatment. Model-based analysis confirmed the high individual-specificity properties of the palatal rugae anatomical morphology patterns, and also showed that the incidence of any morphological change in the patterns after orthodontic treatment was 45.7 % for anteroposterior displacement of the distal endpoint of palatal rugae, 40 % for mesiodistal displacement of the distal endpoint of palatine, 32.9 % for anteroposterior displacement of the mesial endpoint of palatal rugae, and 17.1 % for mesiodistal displacement of the mesial endpoint of palatal rugae. The incidence of change in length, orientation and shape of palatine after orthodontic treatment was 28.6 %, 1.4 % and 1.4 % respectively; and the incidence of palatal segmentation and unification after orthodontic treatment was 4.3 % and 2.9 % respectively. The mean percentage of correct matches of the palatine patterns after orthodontic treatment to their duplicates was 99.05 % and the mean percentage of correct matches of the palatine patterns between before and after orthodontic treatment was 92.19 %. Palatal rugae anatomical morphology patterns are unique to each individual. After orthodontic treatment, palatal rugae have diverse presentation patterns. Although the diverse palatine patterns to a certain degree, influence individual identification in the field of forensic identification, palatal rugae patterns can be used as a novel method for individual identification in forensic dentistry.

Is Palatal Rugae Pattern a Reliable Tool for Personal Identification following Orthodontic Treatment? A Systematic Review and Meta-Analysis

“…Joanna Brigg’s risk of bias assessment: Out of 18 studies, 11 showed a moderate risk of bias [ 8 , 19 , 20 , 22 , 24 , 26 , 27 , 29 , 30 , 31 , 32 ] and 7 showed a low risk of bias [ 16 , 17 , 18 , 21 , 23 , 25 , 28 ] ( Table 2 ). Inclusion criteria have been properly defined by seven studies [ 17 , 18 , 21 , 23 , 25 , 28 , 32 ].…”

“…Joanna Brigg’s risk of bias assessment: Out of 18 studies, 11 showed a moderate risk of bias [ 8 , 19 , 20 , 22 , 24 , 26 , 27 , 29 , 30 , 31 , 32 ] and 7 showed a low risk of bias [ 16 , 17 , 18 , 21 , 23 , 25 , 28 ] ( Table 2 ). Inclusion criteria have been properly defined by seven studies [ 17 , 18 , 21 , 23 , 25 , 28 , 32 ]. Details of the subjects included in the studies, objectives, and standard criteria used for the measurement and the reliability and validity of the exposure measurement tool have been described by thirteen studies [ 8 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 28 ].…”

“…Inclusion criteria have been properly defined by seven studies [ 17 , 18 , 21 , 23 , 25 , 28 , 32 ]. Details of the subjects included in the studies, objectives, and standard criteria used for the measurement and the reliability and validity of the exposure measurement tool have been described by thirteen studies [ 8 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 28 ]. Five studies did not provide details of the selected subjects [ 27 , 29 , 30 , 31 , 32 ].…”

“…Five studies did not provide details of the selected subjects [ 27 , 29 , 30 , 31 , 32 ]. Confounding factors were considered in three studies [ 16 , 23 , 25 ]. Reliability in outcome measurement and appropriate statistical analysis were assessed in all eighteen studies.…”

O conhecimento da anatomia versus a Odontologia Legal: Uma revisão integrativa sobre o processo de identificação humana

“…Além desses supracitados, as pesquisas de Babaji et al (2018), Bing et al (2017a), Xiu-Ping et al (2017, Wu et al (2016), Muhasilovic et al (2016) e Lima et al (2016 também avaliaram os principais aspectos da análise de diferenciação de gênero pela rugoscopia palatina. Ademais, os autores estabeleceram a importância de tal método para a análise forense e a anuência de que não há influência no tratamento ortodôntico na observação de tais rugas (Wu et al, 2016;Xiu-Ping et al, 2017;Muhasilovic et al, 2016) e, além disso, o uso da tecnologia para o reconhecimento de tais diferenças morfológicas é fundamental para a identificação forense (Babaji et al, 2018;Bing et al, 2017b;Lima et al, 2016).…”