J Korean Assoc Oral Maxillofac Surg.  2012 Apr;38(2):71-77. 10.5125/jkaoms.2012.38.2.71.

Study on the position of the posterior superior alveolar artery in relation to the performance of the maxillary sinus bone graft procedure in a Korean population

• Park WH
• Choi SY
• Kim CS

• KMID: 2189690
• DOI: http://doi.org/10.5125/jkaoms.2012.38.2.71

Abstract

OBJECTIVES
This study sought to investigate the positioning of the posterior superior alveolar artery in relation to the performance of the maxillary sinus bone graft procedure in a Korean population.
MATERIALS AND METHODS
We identified the position of the posterior superior alveolar artery relative to 93 maxillary sinuses in 58 patients and determined the distance from the inferior border of the artery in the premolar and molar areas to the alveolar ridge and sinus floor.
RESULTS
The mean distance from the alveolar ridge to the posterior superior alveolar artery in the dentate group (20.62+/-3.05 mm in the premolar region, 17.50+/-2.84 mm in the molar region) was greater than as compared to the edentulous group (18.83+/-2.79 mm in the premolar region, 15.50+/-1.64 mm in the molar region), and this difference was statistically significant (P<0.05). In contrast, there was no statistically significant difference (P>0.05) between the mean distance from the sinus floor to the posterior superior alveolar artery in the dentate group (8.21+/-2.79 mm in the premolar region, 7.52+/-2.07 mm in the molar region) or in the edentulous group (7.75+/-3.31 mm in the premolar region, 7.97+/-2.31 mm in the molar region).
CONCLUSION
Prior to surgery, it is important to evaluate the position of the posterior superior maxillary artery by using computed tomography scans. The premolar area is safer than the molar area for performing the maxillary sinus bone graft without bleeding.

Keyword

Maxillary sinus; Posterior superior alveolar artery; Sinus floor augmentation

MeSH Terms

Alveolar Process
Arteries
Bicuspid
Floors and Floorcoverings
Hemorrhage
Humans
Maxillary Artery
Maxillary Sinus
Molar
Sinus Floor Augmentation
Transplants

Figure

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  Fig. 1. Schematic representation of the cross-sectional view of the maxillary sinus. The bone canal is intraosseous anastomosis from the posterior superior alveolar artery (arrow indicates intraosseous anastomosis).

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  Fig. 2. Schematic representation of sagittal section of the maxillary sinus with blood vessels. (MA: maxillary artery, IA: infra-orbital artery, PSAA: posterior superior alveolar artery, ANS: anterior nasal spine, AR: alveolar ridge)

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  Fig. 3. Measurement of the distance from the alveolar ridge to the posterior superior alveolar artery on the computed tomography image.

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  Fig. 4. Continuity of the posterior superior alveolar artery on the computed tomography T image.

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