Alveolar bone height according to the anatomical relationship between the maxillary molar and sinus

Journal of Periodontal & Implant Science
Yoon Joo ChoiKug Jin Jeon

Abstract

The aim of this study was to investigate the available alveolar bone height between the maxillary molars and the sinus floor according to their anatomical relationship using cone-beam computed tomographic (CBCT) images. A total of 752 maxillary first (M1) and second molars (M2) on CBCT scans of 188 patients were selected. First, each maxillary molar was categorized as type 1, 2, 3, or 4 according to the relationship of the molar root with the maxillary sinus floor. The frequency distribution of each type was analyzed. Second, the shortest vertical distance (VD) of each molar was measured from the furcation midpoints of the roots to the lowest point of the sinus floor by 2 observers. Intraclass correlation coefficients and the t-test were calculated for the VD measurements. For M1, type 3 was the most frequent, followed by type 2. For M2, type 3 was the most common, followed by type 1. The VD measurements of type 1 were 9.51±3.68 mm and 8.07±2.73 mm for M1 and M2, and those of type 3 were 3.70±1.52 mm and 4.03±1.53 mm for M1 and M2, respectively. The VD measurements of M2 were significantly higher in female patients than in male patients. Type 3 was the most frequent anatomical relationship in the maxillary molars, and showed th...Continue Reading

References

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Citations

Sep 23, 2020·Surgical and Radiologic Anatomy : SRA·Jeong-Hyun LeeJong-Tae Park
Aug 30, 2020·Oral and Maxillofacial Surgery·Ceren Aktuna BelginCemal Atakan

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Methods Mentioned

BETA
X-ray

Software Mentioned

OnDemand3D
SPSS

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