Evaluation of Midpalatal Suture Patency in Individuals of various age groups: A Cone Beam Computed Tomography study

Madisetty Naga Raviteja, (2016) Evaluation of Midpalatal Suture Patency in Individuals of various age groups: A Cone Beam Computed Tomography study. Masters thesis, Ragas Dental College and Hospital, Chennai.


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AIM OF THE STUDY: The aim of this study was to evaluate the length, width [patency], percentage of obliteration and morphology of midpalatal suture in individuals below and above 18 years using cone beam computed tomography in various malocclusions and to assess whether cone beam computed tomography (CBCT) can be used as a diagnostic tool for individual assessment of midpalatal suture in transverse maxillary deficiency. MATERIALS AND METHODS: CBCT images in 120 subjects (60 female and 60 male with ages ranging from 10-40 years) were examined. Five regions of interest (ROIs) were chosen and defined as: point A, anterior most point of the maxilla (anterior nasal spine); point B, most posterior point on posterior wall of incisive foramen; point C, midpoint of anterior midpalatal suture; point D, point in midline tangent to line connecting posterior walls of greater palatine foramens (transverse suture); point E, posterior most point of maxilla (posterior nasal spine). The following parameters were assessed: length, width, percentage of obliteration and morphology of midpalatal suture. One way ANOVA and Chi square tests were performed to find the difference between the means of all the study parameters in different regions of interest (ROIs). RESULTS: The total midpalatal suture length and width showed significant differences between gender and various malocclusions. Males showed more length of total midpalatal suture compared with females. Subjects with class II malocclusion showed more length of total midpalatal suture compared with class I and class III malocclusion. The midpalatal suture width was found to be more in females compared with males and subjects with class I malocclusion showed more width of midpalatal suture compared with class II and class III malocclusions. The obliteration of midpalatal suture exhibited substantial inter-individual variation, which was generally low and did not correlate with gender and malocclusion. Significant differences were found between age groups with more obliteration observed posteriorly at nasal surface of midpalatal suture in above 18 years of age. The maximum percentage of obliteration observed was type II (26-50%) in a 26 year old subject. Interpretation of our study findings showed that the morphology of midpalatal suture correlated only with age. In most of the subjects, midpalatal suture morphology was wavy and in few subjects, it was tortuous which occurs posteriorly with the increase in age. CONCLUSION: Midpalatal suture patency assessed using CBCT revealed that the patency was independent of age. Obliteration and suture morphology were the only age dependent parameters in our study. Our study verified the fact that midpalatal suture obliteration occurs more posteriorly in adolescent and young adult patients. Therefore, the treatment mechanics for correcting transverse maxillary deficiency could probably be more efficiently designed in such a way that more forces are expressed posteriorly close to centre of resistance of palate. This evaluation of midpalatal suture patency and percentage of obliteration using CBCT has confirmed its reliability as a diagnostic tool in the individual assessment of midpalatal suture for treatment planning.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Midpalatal suture, Length, Width [Patency], Obliteration, Midpalatal suture morphology, Cone Beam Computed Tomography (CBCT).
Subjects: DENTAL > Orthodontics and Dentofacial Orthopedics
Depositing User: Subramani R
Date Deposited: 22 Sep 2021 05:06
Last Modified: 22 Sep 2021 05:06
URI: http://repository-tnmgrmu.ac.in/id/eprint/18063

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