Prosthetic aspects of osseointegrated fixtures supporting overdentures. A 4-year report

Naert, Ignace; Quirynen, Marc; Theuniers, Guy; Steenberghe, Daniël van

doi:10.1016/0022-3913(91)90205-b

Cited by 160 publications

(63 citation statements)

References 5 publications

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“…Two implant-retained overdentures with separated implants have been reported with high implant success rates (97–100%) and functional improvement [5–8]. There is consensus that 2 implants splinted [9–11] or unsplinted [6, 12, 13] in the interforaminal region of the mandible are sufficient to support an overdenture [14, 15]. Indeed, the McGill consensus statement suggested that the 2-implant overdenture should be the first choice of treatment for the edentulous mandible [16].…”

Section: Introductionmentioning

confidence: 99%

A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results

El-Sheikh

Shihabuddin

Ghoraba

2012

International Journal of Dentistry

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Purpose. To investigate the predictability of simplifying mandibular overdenture treatment using one-stage surgery and early prosthetic loading of a single implant. Materials and Methods. Twenty edentulous patients with problematic existing mandibular dentures were treated. A single implant with a chemically modified surface (SLActive, Straumann AG, Basel, Switzerland) was placed into the mandibular midline. The patients were recalled at 3, 6 and 12 months. Clinical assessments and marginal bone loss using standardized radiographs were recorded. All complications, failures and maintenance were noted. Visual analog-scale questionnaires were used to record patient satisfaction in five categories. ANOVA was used to determine differences between means of marginal bone loss and different categories of patient staisfaction (P = 0.05). Results. The 20 early loaded implants were all surviving at the 12-month recall. All implants showed less than 1 mm of marginal bone loss by the end of the 1-year with a significant increase during the follow-up period. Few prosthetic problems were reported. Patient satisfaction was high with a significant increase in all comfort and functional parameters. Conclusions. These preliminary 1-year results indicate that early loading of a single chemically modified surface implant used to retain a mucosa-borne mandibular overdenture is a safe, reliable, and cost-effective treatment.

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Section: Introductionmentioning

confidence: 99%

A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results

El-Sheikh

Shihabuddin

Ghoraba

2012

International Journal of Dentistry

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“…The indication of an adhesive attachment, however, is restricted to a caries‐free (Marinello & Schärer 1987) and vital abutment tooth. The introduction of implants allowed for another tooth preserving retainer in the form of implant retained balls or bar attachments (Naert et al . 1991).…”

Section: Introductionmentioning

confidence: 99%

A retrospective study of combined fixed–removable reconstructions with their analysis of failures

Mader²,

Stahel³

et al. 1998

J of Oral Rehabilitation

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The survival rate and the reasons for failures of 130 combined fixed-removable reconstructions (CFR), incorporated in 112 patients, were assessed. Each CFR reconstruction was classified depending on its attachments: 76 reconstructions were attached with rigid, precise attachments, and constituted the rigid group; 54 reconstructions were attached with either semi-precision or individual attachments and were defined as the semi-rigid group. Of the 130 reconstructions, 41 were determined as complete successes, 39 as partial successes and 50 as failures, leading to 37 major repairs and to 13 new reconstructions. Three reconstructions failed due to technical reasons, 36 due to biological reasons and for 11 reconstructions, both categories of reasons were responsible for their failure. In total, technical reasons were counted 15 times in comparison to 73 biological reasons for those 50 failed reconstruction, with 29 fractured abutment teeth as the most common biological reason. Within the rigid group, 45 failed reconstructions were observed, whereas within the semi rigid group only 5 failures occurred, leading to an 8-year survival estimate (+/- SD) of 30.1% (+/- 6.9%) for the rigid group and 93.1% (+/- 3.9%) for the semi rigid group. Beside the attachment type, the anatomy of the partially edentulous tooth arch in form of the free-end situation and the dentate opposing jaw were identified as risk factors.

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“…1) However, a common prosthetic complication associated with implant therapy is screw fracture or loosening. [1][2][3] More generally, distortion of internal implant surfaces can allow rotation or loosening of implants. Problems would be alleviated if smaller implants could be constructed of stronger alloys such as Co-Cr.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

et al. 2004

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ASilicate glass coatings on Vitallium Ò , a Co-Cr alloy were prepared using a simple enameling technique. The composition of the glasses in the SiO 2 -Na 2 O-K 2 O-MgO-CaO-P 2 O 5 system has been tailored to match the thermal expansion of the alloys. The optimum glass composition and firing conditions (temperature and time) needed to fabricate homogeneous coatings with good adhesion to the alloy were determined. The final coating thickness ranged between 40 and 60 mm. Coatings fired under the optimum conditions do not delaminate during indentation tests of adhesion. Excellent adhesion to the alloy has been achieved through the formation of 150 nm thick interfacial layers (CrOx). The silicate glass can be successfully coated to Co-Cr alloy and formed hydroxyapatite on the glass surface when immersed in a simulated body fluid (SBF) for 30 days.

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Prosthetic aspects of osseointegrated fixtures supporting overdentures. A 4-year report

Cited by 160 publications

References 5 publications

A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results

A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results

A retrospective study of combined fixed–removable reconstructions with their analysis of failures

Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

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