Immediate Implant Placement into Extraction Sockets with Labial Plate Dehiscence Defects: A Clinical Case Series.
OBJECTIVE
To measure the buccal plate reconstruction of extraction sockets with labial plate dehiscence defects using a bone allograft in combination with an absorbable collagen membrane and a custom-healing abutment at the time of tooth removal.


METHODS
Ten patients underwent immediate implant placement and reconstruction of the buccal plate. Cone beam computed tomography (CBCT) was performed preextraction, immediately after bone grafting and implant placement (day 0), and between 6 and 9 months following implant surgery. Measurements were taken at three levels: coronal (L1), middle (L2), and apical (L3) level.


RESULTS
Implants placed into sockets with labial plate dehiscence defects demonstrated radiographic reformation of the labial plate dehiscence defect at 6 to 9 months posttreatment. The net gain in labial plate on cone beam computerized tomography (CBCT) in L1 and L2 was 3.0 mm, where 0 mm existed at pretreatment. The minimum amount of labial plate thickness of 2.0 mm was achieved in all treated sites, evaluated radiographically at 6 to 9 months postoperatively, in a single procedure, without flap elevation and maintaining the gingival architecture and satisfactory esthetics.


CONCLUSIONS
Placing an absorbable membrane, bone graft, and custom-healing abutment at the time of flapless anterior tooth extraction and immediate implant placement into a socket with a labial osseous dehiscence is a viable clinical technique to reconstitute the absence of the labial bone plate.
Department of Prosthodontics, Columbia University College of Dental Medicine, New York, NY, USA.|Department of Periodontology and Oral Implantology, Temple University School of Dentistry, Philadelphia, PA, USA.
Guido O
GO
Sarnachiaro
Ashman Department of Periodontology and Implant Dentistry, New York University College of Dentistry and Columbia University College of Dental Medicine, New York, NY, USA.
Stephen J
SJ
Chu
Fundacion Cientifica Buenos Aires, Buenos Aires, Argentina.
Evangelina
E
Sarnachiaro
Implantology Department, John F. Kennedy University, Buenos Aires, Argentina.
Sergio Luis
SL
Gotta
Department of Periodontology, Columbia University College of Dental Medicine, New York, NY, USA.
Dennis P
DP
Tarnow
D016301:Alveolar Bone Loss; D001861:Bone Regeneration; D016025:Bone Transplantation; D054893:Cone-Beam Computed Tomography; D000044:Dental Abutments; D015921:Dental Implants; D006801:Humans; D057893:Immediate Dental Implant Loading; D007568:Jaw / Q000000981:diagnostic imaging; D056948:Orthognathic Surgical Procedures; D013529:Surgical Wound Dehiscence; D014081:Tooth Extraction; D020390:Tooth Socket / Q000601:surgery
D015921:Dental Implants
alveolar ridge reconstruction; bone defects; bone grafting; clinical study; cone beam computed tomography; guided bone regeneration; immediate implants