# Investigating Maxillary Sinus and Buccal Bone Biometrics via Cone Beam Computed Tomography (CBCT) in an Iranian Sample: -

## TL;DR

This study uses CBCT scans to analyze maxillary sinus and bone thickness in an Iranian population, highlighting the importance of imaging for dental procedures.

## Contribution

The study provides new empirical data on maxillary sinus and buccal bone biometrics specific to an Iranian population using CBCT.

## Key findings

- 53.06% of right third molar roots protruded into the maxillary sinus floor.
- Buccal bone thickness varied significantly, with the first premolar having the thinnest and the third molar palatal root the thickest.

## Abstract

The maxillary sinus’s close anatomical relationship with posterior teeth
roots
presents significant challenges in dental and surgical procedures, with
variations in sinus morphology influencing clinical outcomes. This study
aimed to evaluate maxillary sinus biometrics
and buccal bone thickness using Cone Beam Computed Tomography (CBCT) in an
Iranian
population.

A retrospective analysis of 210 CBCT scans was conducted, measuring root apex
proximity to the maxillary sinus floor (MSF) and buccal cortical bone
thickness.

Findings revealed that 53.06% of right third molar roots protruded into the
MSF, while only 2% of left first premolars did. The mesiobuccal root of the
third molar had the
shortest distance to the MSF (-1.38 ± 0.89 mm), whereas the palatal root of
the first premolar
was farthest (9.81 ± 3.93 mm). Buccal bone thickness was thinnest at the
first premolar (1.21
mm) and thickest at the third molar palatal root (13.23 mm), with
significant differences observed among molar roots.

These findings underscore the importance of CBCT in
preoperative planning to minimize complications during apical surgery and
implant placement,
particularly in cases involving posterior maxillary teeth.