Frequency and Localization of Overhanging Restorations

Meltem Tekbaş Atay; Mediha Büyükgöze Dindar; Esra Özyurt; Aylin Çilingir; Uğur Erdemir

doi:10.7126/cumudj.677099

EN

Frequency and Localization of Overhanging Restorations

Abstract

Objectives: The aim of this retrospective study was to determine the frequency and localization of the overhanging restorations by observing patients’ routinely taken panoramic radiographs.

Materials and Methods: The panoramic radiographs of 4,960 patients who applied to a dental clinic in University between 2015 and 2016 and had one or more previous restorations were retrospectively examined. The study group included 243 patients (133 females and 110 males) with a mean age of 39.7 ± 12.5 years. Superposed interdental areas were not evaluated. Frequency distributions and percentages were calculated for the categorical data as to the surface of the maxillary-mandibular premolar and molar teeth, also the presence or absence of root canal treatment. Chi-square tests were used to compare data relating to the localization and frequency of overhanging restorations.

Results: In the radiological evaluation of 243 patients, a total of 280 overhanging restorations were detected. Root canal treatment was present in 45.4% of the teeth with an overhanging restoration. The frequency of overhanging restorations in the maxilla was significantly higher (60.4%) than that of the mandible (39.6%), (p<0.05). The frequency of overhanging restorations in molar teeth (82.9%) was significantly higher than that of premolar teeth (p<0.05). Of all the overhanging restorations, 90.4% were in Class II cavities and 9.6% were in mesio-occluso-distal (MOD) cavities. More than half (57.3%) of the overhanging margins in the Class II restorations were distal; 42.7% were mesial surfaces (p<0.05). The most frequent restorations with overhanging were found in the maxillary molars (49.6%) and the least frequent were in the premolar teeth of the mandible (6.4%).

Conclusions: The restorations with overhanging margins determined most often at the disto-occlusal margins of the maxillary molars. The frequency of overhanging restorations was higher in areas that are difficult to reach during treatment.

Keywords

Dental Marginal Adaptation,Dental Restoration Failure,Permanent Dental Restoration,Molar,Panoramic Radiography

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Details

Primary Language

English

Subjects

Health Care Administration

Journal Section

Research Article

Authors

Meltem Tekbaş Atay ^*
0000-0002-1762-830X
Türkiye

Mediha Büyükgöze Dindar
0000-0003-3794-4366
Türkiye

Esra Özyurt
0000-0003-4118-0450
Türkiye

Aylin Çilingir
0000-0002-9848-9136
Türkiye

Uğur Erdemir
0000-0002-4673-8284
Türkiye

Publication Date

June 30, 2020

Submission Date

January 24, 2020

Acceptance Date

April 19, 2020

Published in Issue

Year 1970 Volume: 23 Number: 2

DOI

https://doi.org/10.7126/cumudj.677099

IZ

https://izlik.org/JA26JW95YF

Cite

RIS / Bibtex

EndNote

Tekbaş Atay M, Büyükgöze Dindar M, Özyurt E, Çilingir A, Erdemir U (June 1, 2020) Frequency and Localization of Overhanging Restorations. Cumhuriyet Dental Journal 23 2 116–123.

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