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Published on: February 10, 2014
[Experimental study of Ti-75(AlMoZrTi alloy) dental implants in dog mandible]
1Department of Stomatology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Objective:
The purpose of this study was to investigate the biocompatibility of Ti-75(AlMoZrTi Alloy) dental implants.
Methods:
Four 6.5 to 16 kg dogs were used,after mandibular cuspids and premolar extraction, 16 implants were placed and left for six or twelve months. All of the dental implants were made of Ti-75 (AlMoZrTi Alloy) and they were manufactured in two types-nonsubmerged and submerged threaded implants.
Results:
The survival rate of the implants was 100% (submerged implants) and 91.7% (nonsubmerged implants). Histologically,all survival implants showed some degree of intimate bone to implant contact, but one of the nonsubmerged implants showed periimplantitis. No implants were observed to be mobile. The periotest values of the dental implants were near the periotest values of the nature teeth.
Conclusion:
This study demonstrated Ti-75 is a biocompatible material and periotest is worthy of detection of osseointegration.
