Evaluation of Contour Augmentation in Immediate Single-Tooth Implants With and Without Flaps in the Anterior Maxilla: A 1-Year Prospective Study.

This prospective clinical study involved 20 patients in whom implants were immediately placed in extraction sockets. Residual bone defects were grafted, and the buccal bone plate was overcontoured with a xenogeneic bone substitute and covered by a collagen membrane. One year after implant placement, CBCT images were acquired to evaluate buccal bone, and implant stability was analyzed through resonance frequency analysis. Results showed that buccal bone covered the rough surface of all implants 1 year after implantation. Hard tissues responded more favorably in the flapless group. No correlation was found between initial bone defects and bone dimensions in the follow-up exam.

[1]  U. Belser,et al.  Effectiveness of Contour Augmentation with Guided Bone Regeneration: 10-Year Results , 2018, Journal of dental research.

[2]  J. Lindhe,et al.  The effect of placing a bone replacement graft in the gap at immediately placed implants: a randomized clinical trial , 2017, Clinical oral implants research.

[3]  I. Darby,et al.  The relationship between facial bone wall defects and dimensional alterations of the ridge following flapless tooth extraction in the anterior maxilla , 2017, Clinical oral implants research.

[4]  D. Buser,et al.  Clinical relevance of dimensional bone and soft tissue alterations post‐extraction in esthetic sites , 2017, Periodontology 2000.

[5]  Urs C. Belser,et al.  Implant placement post extraction in esthetic single tooth sites: when immediate, when early, when late? , 2017, Periodontology 2000.

[6]  U. Belser,et al.  Influence of implant neck design on facial bone crest dimensions in the esthetic zone analyzed by cone beam CT: a comparative study with a 5-to-9-year follow-up. , 2016, Clinical oral implants research.

[7]  G. Iezzi,et al.  Biological width formation to immediate implants placed at different level in relation to the crestal bone: an experimental study in dogs. , 2015, Clinical oral implants research.

[8]  P. Dalmasso,et al.  Long-term stability of soft tissues following alveolar ridge preservation: 10-year results of a prospective study around nonsubmerged implants. , 2014, The International journal of periodontics & restorative dentistry.

[9]  C. Tomasi,et al.  Ridge preservation with the use of deproteinized bovine bone mineral. , 2014, Clinical oral implants research.

[10]  D. Deporter,et al.  The effects of laser microgrooves on hard and soft tissue attachment to implant collar surfaces: a literature review and interpretation. , 2013, The International journal of periodontics & restorative dentistry.

[11]  A. Piattelli,et al.  Buccal bone plate in immediately placed and restored implant with Bio-Oss(®) collagen graft: a 1-year follow-up study. , 2012, Clinical oral implants research.

[12]  G. Benic,et al.  Dimensions of buccal bone and mucosa at immediately placed implants after 7 years: a clinical and cone beam computed tomography study. , 2012, Clinical oral implants research.

[13]  R. Jung,et al.  Submerged and transmucosal healing yield the same clinical outcomes with two-piece implants in the anterior maxilla and mandible: interim 1-year results of a randomized, controlled clinical trial. , 2012, Clinical oral implants research.

[14]  M. Sanz,et al.  Surgical protocols for early implant placement in post-extraction sockets: a systematic review. , 2012, Clinical Oral Implants Research.

[15]  M. Sanz,et al.  Surgical protocols for ridge preservation after tooth extraction. A systematic review. , 2012, Clinical oral implants research.

[16]  Yasukazu Miyamoto,et al.  Dental cone beam computed tomography analyses of postoperative labial bone thickness in maxillary anterior implants: comparing immediate and delayed implant placement. , 2011, The International journal of periodontics & restorative dentistry.

[17]  D. Kim,et al.  Histologic evidence of a connective tissue attachment to laser microgrooved abutments: a canine study. , 2010, The International journal of periodontics & restorative dentistry.

[18]  J. Lindhe,et al.  Ridge alterations following tooth extraction with and without flap elevation: an experimental study in the dog. , 2009, Clinical oral implants research.

[19]  J. Lindhe,et al.  Ridge preservation with the use of Bio-Oss collagen: A 6-month study in the dog. , 2009, Clinical oral implants research.

[20]  Daniel Rothamel,et al.  [Dimensional ridge alterations following tooth extraction. An experimental study in the dog]. , 2007, Mund-, Kiefer- und Gesichtschirurgie : MKG.

[21]  J. Wennström,et al.  Modeling of the buccal and lingual bone walls of fresh extraction sites following implant installation. , 2006, Clinical oral implants research.

[22]  D. Buser,et al.  Esthetic outcomes following immediate and early implant placement in the anterior maxilla--a systematic review. , 2014, The International journal of oral & maxillofacial implants.

[23]  N. Lang,et al.  A prospective, randomized-controlled clinical trial to evaluate bone preservation using implants with different geometry placed into extraction sockets in the maxilla. , 2010, Clinical oral implants research.

[24]  B. Pjetursson,et al.  Bone dimensional variations at implants placed in fresh extraction sockets: a multilevel multivariate analysis. , 2010, Clinical oral implants research.

[25]  J. Lindhe,et al.  Dynamics of Bio-Oss Collagen incorporation in fresh extraction wounds: an experimental study in the dog. , 2010, Clinical oral implants research.

[26]  Daniel Buser,et al.  Clinical and esthetic outcomes of implants placed in postextraction sites. , 2009, The International journal of oral & maxillofacial implants.

[27]  C. Hämmerle,et al.  Immediate or early placement of implants following tooth extraction: review of biologic basis, clinical procedures, and outcomes. , 2004, The International journal of oral & maxillofacial implants.