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KMID : 0362419970350020255
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Journal of Korean Academy of Prosthodontics
1997 Volume.35 No. 2 p.255 ~ p.264
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COMPARATIVE STUDY ON THE MARGINAL BONE LOSS OF IMMEDIATE NONSUBMERGED AND SUBMERGED ENDOSSEOUS DENTAL IMPLANTS PLACED INTO EXTRACTION SOCKETS OF DOGS
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Yang Jae-Ho
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Abstract
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The conventional osseointegration protocol calls for waiting up to 12 months for ossification of an extraction socket to heal before placing an endosseous implant. In this study, the possibility of placing a pure titanium implant directly into an extraction socket immediately after extraction was investigated. And the marginal bone loss of immediate nonsubmerged and submerged endosseous dental implants placed into extraction sockets was also compared. Pure titanium Nobelpharma Branemark implants and solid screw type ITI implants were placed into premolar extraction sockets of two adult dogs and allowed to heal for a period of 3 months, followed by functional loading of the implnat. Radiographic examination was performed before implantation,immediately after implantation and 3, 6, 9, 12 months after implantation. The results obtained were as follows: 1. Immediately placed nonsubmerged ITI implants and submerged Branemark implants showed favorable radiographic osseointegration status and there were minimum marginal bone loss. 2. There were no significant differences in radiographic finding of osseointegration between conventional and immediate implantation. 3. Gingival tissue around implants showed more inflammatory signs than that of adjacent natural teeth. This study suggest that pure titanium Branemark implants and submerged ITI implants have the potential to integrate when placed immediately after extraction of the teeth and warrants further investigation.
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KEYWORD
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