Maxillary sinus augmentation using biphasic calcium phosphate: dimensional stability results after 3–6 years
Journal of Periodontal & Implant Science
;
: 47-57, 2019.
Article
in English
| WPRIM
| ID: wpr-766087
ABSTRACT
PURPOSE:
This study was designed to observe the resorption pattern of biphasic calcium phosphate (BCP) used for maxillary sinus augmentation over a 3- to 6-year healing period, and to investigate factors affecting the resorption of BCP.METHODS:
A total of 47 implants placed in 27 sinuses of 22 patients were investigated. All patients had residual bone height less than 5 mm at baseline. The modified Caldwell-Luc approach was used to elevate the maxillary sinus membrane, and the sinus cavity was filled with BCP (70% hydroxyapatite and 30% β-tricalcium phosphate). Implant placement was done simultaneously or in a staged manner. Serial radiographic analysis was performed up to 6 years postoperatively.RESULTS:
During the follow-up period, no implant loss was reported. The mean reduced height of the augmented sinus (RHO) was 0.27±1.08 mm at 36 months, and 0.89±1.39 mm at 72 months postoperatively. Large amounts of graft material (P=0.021) and a long healing period (P=0.035) significantly influenced the amount of RHO. In particular, there was a significant relationship between a healing period longer than 40 months and RHO.CONCLUSIONS:
BCP can achieve proper dimensional stability with minimal reduction of the graft height in a 3- to 6-year healing period after maxillary sinus augmentation. The healing period and the amount of graft material influenced the resorption of BCP.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Dental Implants
/
Calcium
/
Follow-Up Studies
/
Durapatite
/
Bone Substitutes
/
Transplants
/
Sinus Floor Augmentation
/
Maxillary Sinus
/
Membranes
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Journal of Periodontal & Implant Science
Year:
2019
Type:
Article
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