Using periodontal staging and grading system as a prognostic factor for future tooth loss: A long-term retrospective...

Area of Science:

• Periodontology
• Dental Research
• Prognostic Studies

Background:

• A new multidimensional staging and grading system for periodontal diseases has been proposed.
• The prognostic predictive capability of this new classification has not yet been investigated.
• This study aimed to evaluate the long-term tooth loss prediction of the new periodontitis classification.

Purpose of the Study:

• To assess the prognostic capability of the new periodontitis classification in predicting tooth loss.
• To determine if staging, grading, and extent parameters predict tooth loss over a >10-year follow-up.
• To provide initial evidence on the predictive ability of the new classification.

Main Methods:

• 292 patients with periodontitis were categorized using the new classification (staging, grading, extent).
• Tooth loss data and reasons were extracted for patients with regular maintenance.
• Multilevel Cox regression analyses were used to assess the prognostic capabilities of classification variables.

Main Results:

• A significant association was found between baseline stage and grade and periodontal-related tooth loss.
• Patients in Stage 4 had a 3.73 times higher risk of tooth loss compared to Stage 1.
• Patients in Grade C had a 4.83 times higher risk of tooth loss compared to Grade A.
• The extent of periodontitis did not show a significant difference in predicting tooth loss.

Conclusions:

• The new periodontitis classification demonstrates prognostic predictive ability for tooth loss.
• Higher stages (Stage 4) and grades (Grade C) are significantly associated with increased periodontal-related tooth loss.
• This classification can aid in identifying patients at higher risk for tooth loss.