Effect of iatrogenic factors on periodontal health: An epidemiological study
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.
• Materials and methods: 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.
• Static analysis: 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 t--
test.
The prevalence of overhanging restorations was done through percentages comparison
between restorative sites with non-restorative sites.
