Measurement of maxillary sinus volume and available alveolar bone height using computed tomography / 대한구강악안면방사선학회지
Korean Journal of Oral and Maxillofacial Radiology
;
: 35-41, 2003.
Article
in Korean
| WPRIM
| ID: wpr-165443
ABSTRACT
PURPOSE:
To aid in determining the volume of graft bone required before a maxillary sinus lift procedure and compare the alveolar bone height measurements taken by panoramic radiographs to those by CT images. MATERIALS ANDMETHODS:
Data obtained by both panoramic radiographs and CT examination of 25 patients were used in this study. Maxillary sinus volumes from the antral floor to heights of 5 mm, 10 mm, 15 mm, and 20 mm, were calculated. Alveolar bone height was measured on the panoramic images at each maxillary tooth site and corrected by magnification rate (PBH). Available bone height (ABH) and full bone height (FBH) was measured on reconstructed CT images. PBH was compared with ABH and FBH at the maxillary incisors, canines, premolars, and molars.RESULTS:
Volumes of the inferior portion of the sinuses were 0.55+/-0.41 cm 3 for 5 mm lifts, 2.11+/-0.68 cm 3 for 10 mm, 4.26+/-1.32 cm 3 for 15 mm, 6.95+/-2.01 cm 3 for 20 mm. For the alveolar bone measurement, measurements by panoramic images were longer than available bone heights determined by CT images at the incisor and canine areas, and shorter than full bone heights on CT images at incisor, premolar, and molar areas (p< 0.001).CONCLUSION:
In bone grafting of the maxillary sinus floor, 0.96 cm 3 or more is required for a 5 mm-lift, 2.79 cm 3 or more for a 10 mm-lift, 5.58 cm 3 or more for a 15 mm-lift, and 8.96 cm 3 or more for a 20 mm-lift. Maxillary implant length determined using panoramic radiograph alone could result in underestimation or overestimation, according to the site involved.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Tooth
/
Bicuspid
/
Radiography
/
Dental Implants
/
Bone Transplantation
/
Transplants
/
Incisor
/
Maxillary Sinus
/
Molar
Type of study:
Diagnostic study
Limits:
Humans
Language:
Korean
Journal:
Korean Journal of Oral and Maxillofacial Radiology
Year:
2003
Type:
Article
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