Reddy Kankara Vinathi, Nirupama Chembolu, Reddy Pathakota Krishnajaneya, Koppolu Pradeep, Alotaibi Dalal H
Department of Periodontics, Sri Sai College of Dental Surgery, Vikarabad, Telangana, India.
Department of Preventive Dental Sciences, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
Saudi Dent J. 2020 Feb;32(2):80-85. doi: 10.1016/j.sdentj.2019.07.001. Epub 2019 Jul 8.
Periodontitis is a multifactorial disease. Among conglomerate etiological factors, overhanging interproximal restorations are viewed as contributing factors causing gingival inflammation due to their retentive capacity for bacterial plaque leading to periodontal destruction. Hence this study is intended to determine the prevalence of overhanging restorations and its effect on periodontal status of the teeth and to assess the iatrogenic effects of overhanging margins on periodontal health.
A total of 100 subjects of 15-65 years of age were recruited for this study. Dental restorations which affect periodontal health like amalgams, composite or glass ionomer restorations (overhanging margins proximally), fixed prosthesis, cervical abrasions, class V restorations extending sub-gingivally were included in the study. Patients with known systemic diseases, smokers, and on any medication in past 6 months were excluded from the study. Various parameters like bleeding on probing, probing depth, clinical attachment loss, biological width, gingival recession, duration of restoration were assessed according to the site of the restorations.
A commercially available SPSS version 20.0 Software, was used to perform the statistical analysis. The data were distributed normally and it was investigated using paired -test. The prevalence of overhanging restorations was done through percentages comparison between restorative sites with non-restorative sites.
The presence of sub-gingival restorations was greater in males than in females. This can be attributed to the oral hygiene maintenance of the subjects. The prevalence of sub-gingival restorations was more prevalent in the age groups between 35 and 45 years of age.
This study clearly identified a higher prevalence, 50.8% of sub-gingival restorations causing gingivitis and has shown significant influence on periodontal status of the tooth.
牙周炎是一种多因素疾病。在众多病因中，邻面悬突修复体因其对菌斑的滞留能力可导致牙周破坏，被视为引起牙龈炎症的促成因素。因此，本研究旨在确定悬突修复体的患病率及其对牙齿牙周状况的影响，并评估悬突边缘对牙周健康的医源性影响。
本研究共招募了100名年龄在15至65岁之间的受试者。影响牙周健康的牙科修复体，如汞合金、复合树脂或玻璃离子修复体（邻面悬突边缘）、固定义齿、颈部磨损、龈下延伸的V类修复体均纳入研究。已知患有全身性疾病的患者、吸烟者以及在过去6个月内服用任何药物的患者被排除在研究之外。根据修复体的部位评估各种参数，如探诊出血、探诊深度、临床附着丧失、生物学宽度、牙龈退缩、修复体使用时间。
使用市售的SPSS 20.0软件进行统计分析。数据呈正态分布，并使用配对t检验进行研究。通过修复部位与非修复部位的百分比比较来确定悬突修复体的患病率。
龈下修复体在男性中的存在率高于女性。这可能归因于受试者的口腔卫生维护情况。龈下修复体在35至45岁年龄组中更为普遍。
本研究明确发现龈下修复体的患病率较高，为50.8%，可导致牙龈炎，并对牙齿的牙周状况有显著影响。
