ABSTRACT
AIM AND OBJECTIVE: The aim of this study was to prospectively determine and establish the periodontal prognosis of diseased molars in diabetic patients using the Miller-McEntire Periodontal Prognostic Index (MMPPI) with an additional criterion for diabetes (changes in glycosylated hemoglobin levels), at 2-year postperiodontal therapy. MATERIALS AND METHODS: A sample of 200 molars in 25 patients with diabetes mellitus (DM) and chronic periodontitis were evaluated. The prognostic parameters evaluated include age, probing depth (PD), mobility, furcation involvement, diabetes, and molar type. The total score calculated from all parameters was used considered prognosis score for each molar. All patients were evaluated at baseline and 2-year posttreatment. RESULTS: The results of this study suggest that following prognostic factors, DM (hazard ratio [HR] =5.2), age (HR = 0.4), and molar type (HR = 0.6) were clinically significant at the end of the 2-year posttherapy from baseline. A total of 4 (2%) teeth were extracted from the 200 teeth with a mean of 0.02 for the tooth lost during 2-year posttreatment. Significant improvements (P < 0.05) in the frequency PD, furcation, and mobility scores were noted at 2 years. CONCLUSIONS: These findings demonstrate that score for DM as prognostic criterion is a valid addition to MMPPI. The factors such as DM, age, and molar type can impact the prognosis of molar survival. Studies with a larger sample size and longer follow-up are required to affirm the findings of this preliminary study.
ABSTRACT
BACKGROUND: The purpose of this 2-year prospective survival analysis study is to determine a statistically validated periodontal prognostic score for diseased molars in smokers using the Miller-McEntire Periodontal Prognostic Index (MMPPI). MATERIALS AND METHODS: Two hundred molars were evaluated from 25 patients who were smokers with moderate-to-severe chronic periodontitis. The factors evaluated included age, probing depth, mobility, furcation involvement, smoking, and molar type. A modified, 5 level, scoring criterion for smoking based on smoking-dose was adopted. MMPPI was computed as the sum of scores for all six prognostic factors. Appropriate periodontal treatment and supportive periodontal therapy were provided. All patients were evaluated at baseline and 2 years posttreatment. Hazard risk ratio (HR) was computed for each prognostic factor. RESULTS: A total of 3 (1.5%) teeth of the 200 molars were extracted over the 2-year follow-up duration, with a mean of 0.015 teeth lost. The HR was found as significantly higher for three individual prognostic factors: mobility (HR = 5.57, P = 0.02), smoking (HR = 3.35, P = 0.04), and furcation involvement (HR = 7.30, P = 0.01). Significant and positive HR (HR = 1.70, P = 0.01) was noted for the total MMPPI score, validating its prognostic value for molar survival at 2 years prospectively. CONCLUSIONS: The findings of the current study demonstrate the prognostic validity of MMPPI incorporating a more detailed smoking score criterion. The factors smoking, furcation involvement, and mobility significantly impacted the likelihood of survival of periodontally diseased molars. Further studies with a larger sample size and longer follow-up are required to confirm these findings.
