Abstract
Progressive alveolar bone resorption after tooth extraction may lead to surgical and prosthetic-driven difficulties, especially when deciding to use a dental implant to replace the extracted tooth. This case report discusses an irreparable lower left second premolar tooth with a periodontal lesion on the buccal side. A preservative tooth extraction was performed. Then, the socket was grafted with bovine bone, a collagen membrane was placed between the buccal bone and the attached gingiva, covering the bone dehiscence buccally, and the socket without a flap was raised. After a 6-month healing period, there was minimal socket width resorption and a shallow buccal vestibule. The implant was placed with high primary stability and sufficient buccal plate thickness. In conclusion, this guided tissue regeneration technique can minimize alveolar bone resorption in a socket with buccal dehiscence, but technical difficulties and shallowing of the buccal vestibule still exist.
Highlights
Many causes and factors can lead to buccal wall socket defects or loss, with a common factor being periodontal lesion [1]
Other studies have found that covering the grafted socket with a collagen membrane or soft tissue graft provided better results than uncovered grafted or non-grafted sockets in terms of the amount of bone formation [6, 8]. One reason for this result is that the collagen membrane preserves the blood clot, maintains the space and prevents soft tissue migration into the socket [9]
Using bone graft material alone without a collagen membrane or soft tissue coverage may result in a lower percentage of bone formation [4, 8]
Summary
Many causes and factors can lead to buccal wall socket defects or loss, with a common factor being periodontal lesion [1]. Other studies have found that covering the grafted socket with a collagen membrane or soft tissue graft provided better results than uncovered grafted or non-grafted sockets in terms of the amount of bone formation [6, 8]. One reason for this result is that the collagen membrane preserves the blood clot, maintains the space and prevents soft tissue migration into the socket [9].
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