What does this research mean for the field?

Subgingival full-crown margins are associated with significantly greater probing depths and increased gingival inflammation compared to supragingival margins, indicating that supragingival margins should be preferred for long-term periodontal health. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This review assesses how different crown margin positions affect periodontal outcomes such as inflammation and probing depth.

May 29, 2026Current Oral Health ReportsOpen Access

The Influence of Full-Crown Preparation Margin Position on Periodontal Outcomes: A Systematic Review and Meta-Analysis

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Authors

MCMaría Valentina Cortés-Sánchez EVEliana Isabel Villa-Bedoya MVMauricio Villegas-Vélez

Discussion

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Overview

Systematic review evaluates subgingival versus supragingival margins on periodontal health, suggesting preferred approach.

Key Points

This review assesses how different crown margin positions affect periodontal outcomes such as inflammation and probing depth.
Conducted a systematic review and meta-analysis of 23 studies with 1,725 participants and 5,615 teeth/surfaces.
Searched electronic and grey literature for studies comparing periodontal outcomes between subgingival and supragingival margins.
Applied the GRADE approach for evidence quality assessment and used a random-effects model for data pooling.
Subgingival margins showed significantly greater probing depth, mean difference of 0.57 mm (95% CI: 0.44–0.70).
Gingival index scores were higher with subgingival margins, mean difference of 0.44 (95% CI: 0.16–0.71).
No significant differences were found in plaque index scores.

Cite This Study

Cortés-Sánchez et al. (2026) studied this question.

synapsesocial.com/papers/6a192e79fab5b468c4417985 https://doi.org/10.1007/s40496-026-00429-7

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May 29, 2026Current Oral Health ReportsOpen Access

The Influence of Full-Crown Preparation Margin Position on Periodontal Outcomes: A Systematic Review and Meta-Analysis

View Full Paper

Ask AI

Bookmark

Authors

MCMaría Valentina Cortés-Sánchez EVEliana Isabel Villa-Bedoya MVMauricio Villegas-Vélez

Discussion

Member takes

Overview

Systematic review evaluates subgingival versus supragingival margins on periodontal health, suggesting preferred approach.

Key Points

This review assesses how different crown margin positions affect periodontal outcomes such as inflammation and probing depth.
Conducted a systematic review and meta-analysis of 23 studies with 1,725 participants and 5,615 teeth/surfaces.
Searched electronic and grey literature for studies comparing periodontal outcomes between subgingival and supragingival margins.
Applied the GRADE approach for evidence quality assessment and used a random-effects model for data pooling.
Subgingival margins showed significantly greater probing depth, mean difference of 0.57 mm (95% CI: 0.44–0.70).
Gingival index scores were higher with subgingival margins, mean difference of 0.44 (95% CI: 0.16–0.71).
No significant differences were found in plaque index scores.

Cite This Study

Cortés-Sánchez et al. (2026) studied this question.

synapsesocial.com/papers/6a192e79fab5b468c4417985 https://doi.org/10.1007/s40496-026-00429-7

View Full Paper

Ask AI

Bookmark