Collagen membranes at immediate implants: a histomorphometric study in dogs

Abstract

The use of collagen-resorbable membranes at implants immediately placed into extraction sockets contributed to a partial (23%) preservation of the buccal outline of the alveolar process.

Postextraction Alveolar Ridge Preservation: Biological Basis and Treatments

“…Caneva et al evaluated the use of a collagen membrane over the buccal gap of immediately placed implants and found that the alveolar crest outline was better maintained at the test sites compared with the control sites even if the buccal gap was relatively small [98]. Interestingly, enhanced bone preservation was found when using deproteinized bovine bone mineral particles and a collagen membrane compared to controls whereas no such benefit was noted when using magnesium-enriched hydroxyapatite [99–101].…”

Immediate Implant Placement

“…The implant should not touch the buccal plate of the socket wall in the maxillary anterior teeth, because such touching could cause resorption of buccal plate and esthetic risk. [71][72][73] The implant must be placed at least 1 mm subcrestally, especially if the buccal or lingual plates are thin, 63 or 2 to 3 mm below the gingival margin. 74 The extraction and the placement of the implant should be flapless, when possible, 62 or can use a sulcular incision, 1 tooth mesial and 1 tooth distal to the implant site, which could help to expose the buccal bone.…”

Influência do 'biotipo periodontal' na remodelação dos tecidos moles e da tábua óssea vestibular em alvéolos pós-exodontia e implantes imediatos, com e sem enxerto xenógeno

“…Para tanto, diferentes materiais de enxerto, incluindo enxerto ósseo autógeno, alógeno, xenógeno e sintéticos, associados ou não ao uso de membranas, vêm sendo utilizados em uma tentativa de preservar o rebordo alveolar após exodontia [9][10][11][12][13][14][15][16][17][18][19] .…”

“…It has been suggested that the immediate placement of an implant in the fresh extraction socket could reduce alveolar ridge resorption following tooth removal [5][6][7][8][9] , however, localized osseous defects around immediate implants may present a challenge to the clinician 3,4,10,11 .…”