Incidence of Sinus Membrane Perforation Using Two Types of Implant Drills: An Ex Vivo Animal Study

Jerry C.Y. Lin, Wei Jen Chang, Myron Nevins, David M. Kim

Research output: Contribution to journalArticlepeer-review

Abstract

This ex vivo study evaluates the incidence of sinus membrane perforation during implant site osteotomy with two different types of drills and drilling techniques. Fifty goat heads with 50 sinus pairs (100 sinus sides) were assigned to two groups (osseodensification bur [OB] group and inverse conical shape bur [ICSB] group) to simulate transcrestal sinus elevation (50 sinus sides per group). An osteotomy was performed to pass through the lateral sinus wall no more than 3 mm. The integrity of the sinus membranes was examined and confirmed under a microscope. Of the 50 sinuses per group, the OB group presented with 14 (28%) perforated sinuses, while the ICSB group presented with 2 (4%) perforated sinuses. Of the 14 perforations from the OB group, 6 (42.9%) showed a pinpoint perforation pattern, 4 (28.5%) of which were not visible until direct air pressure was applied. Overall, the ICSB drill group demonstrated a lower sinus perforation rate than the OB group.

Original languageEnglish
Pages (from-to)479-485
Number of pages7
JournalInternational Journal of Periodontics and Restorative Dentistry
Volume42
Issue number4
DOIs
Publication statusPublished - 2022

ASJC Scopus subject areas

  • General Medicine

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