HIGHResearchTier 1
Masseter muscle volume and cross-sectional area as risk factors
SourceClinical Oral Implants ResearchTier 1Peer-Reviewed Research
By Hee‐Sun Choi, Eun‐Chong Lee, Eun‐Kyoung Pang
Originally at onlinelibrary.wiley.com
Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.
Why it matters for dental
Implantologists and oral surgeons should consider larger masseter muscle volume or cross-sectional area as a possible mechanical-failure risk factor when treatment-planning posterior implants, especially in patients with heavy masticatory loads.
Key points
- A 1:4 matched case-control analysis of 23 late mechanical implant failures and 92 matched controls linked higher masseter volume and CSA to increased odds of fixture, screw, or abutment fracture.
- Multivariable modeling found each 1000 mm³ increase in masseter volume raised failure odds 1.24-fold and each 10 mm² increase in CSA raised odds 1.11-fold.
- ROC-derived Youden thresholds of 31,272.56 mm³ (volume) and 691.30 mm² (CSA) gave sensitivities of 86.96 % and 82.61 % and specificities of 77.17 % and 79.35 %.
- Authors note these cut-offs are exploratory and require prospective validation before routine clinical use.
Who should care
SpecialistAcademia
Read the original on Clinical Oral Implants Research
Full reporting and any paywall content live on onlinelibrary.wiley.com. We summarize and score; we do not republish.