Criteria for success of osseointegrated endosseous implants

Smith, Dale E.; Zarb, George A.

doi:10.1016/0022-3913(89)90081-4

Cited by 606 publications

(358 citation statements)

References 17 publications

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“…It's already established in the literature that a successful implant shows peri-implant bone loss up to 1.5 mm during the first year (17)(18)(19). In this study, a high success rate was found after 1 year for the External Hexagon (100%) and Morse Taper (94%) implants.…”

Section: Discussionsupporting

confidence: 50%

“…This method is indicated to determine levels of peri-implant bone loss over time (25). Nevertheless, the periapical radiograph provides a two-dimensional image of a three-dimensional structure, allowing measurement only at mesial and distal surfaces (18). Since the buccal and lingual surfaces are not measured using this method, further studies using computed tomography are required to assess peri-implant bone loss with External Hexagon and Morse Taper implants in order to confirm the present results.…”

Section: Discussionmentioning

confidence: 69%

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Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

et al. 2017

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The aim of this study was to evaluate the peri-implant bone loss of External Hexagon (EH) and Morse Taper (MT) implants in patients wearing immediately loaded mandibular overdentures during a 1-year follow-up. This is a non-randomized controlled clinical trial including 18 MT and 22 EH implants. Periapical radiographs were taken after overdentures insertion and following 1 year. The peri-implant bone loss was assessed through digitalization and analysis of the radiographs in the software Corel DRAW X7. For this, measurement from implant platform to residual ridge at mesial and distal surfaces of each implant was conducted. The results showed high success rate in the groups EH (100%) and MT (94.4%). For peri-implant bone levels, it was found significant difference between the groups (p=0.032) and greater bone loss was observed in the group EH. In general, bone loss was 0.85mm (±0.82) for EH and 0.10mm (±1.0) for MT. It was concluded that greater bone loss occurred in the group EH in comparison to the group MT after a 1-year follow-up. P e r i -I m p l a n t B o n e L o s s o f E x t e r n a l H e x a g o n a n d M o r s e T a p e r i n P a t i e n t s W e a r i n g Immediately Loaded Overdentures

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Section: Discussionsupporting

confidence: 50%

Section: Discussionmentioning

confidence: 69%

Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

et al. 2017

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“…Similarly, no significant difference was observed between panoramic mandibular cortical indices (severely eroded cortex vs. normal cortex) and spinal and femoral neck BMD (Table 5). [14] showed no difference between patients with osteoporosis and controls, with all parameters being normal.…”

Section: Bone Histomorphometrymentioning

confidence: 75%

“…Osseointegration of the dental implants was evaluated after 9 months by clinical examination based on the criterion recommended by Smith and Zarb [14]. Periapical radiographs were analyzed according to the criteria of Spiekermann et al [15], and the stage of peri-implantitis was evaluated as proposed by Jovanovic [16].…”

Section: Bone Histomorphometrymentioning

confidence: 99%

Comparative study of axial and femoral bone mineral density and parameters of mandibular bone quality in patients receiving dental implants

et al. 2007

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Introduction: In view of the increase in the life expectancy of humans and in edentulism of the population above 50 years of age, in which the prevalence of osteoporosis is also higher, it is fundamental to better understand the effects of systemic bone mass loss on the healing process of dental implants and to determine the quality of the bone that surrounds them. The objective of the present study was to compare systemic osteoporosis (axial and femoral) and parameters of mandibular bone quality, and to evaluate osseointegration in postmenopausal women receiving dental implants. Methods: The sample consisted of 39 women aged 48-70 years, 19 with a densitometric diagnosis of osteoporosis in the lumbar spine and femoral neck and 20 controls with a normal densitometric diagnosis. Bone mineral density was measured in the patients and controls by dual-energy X-ray absorptiometry. Eighty-two osseointegrated dental implants were placed in the mandible, 39 of them in the osteoporosis group and 43 in the control group. Mandibular bone quality was evaluated by classifying mandibular inferior cortical and trabecular bone on panoramic radiographs and by histomorphometric analysis of a mandibular bone biopsy. Osseointegration was analyzed after 9 months. Results: No significant difference was observed between patients with osteoporosis and controls when comparing individuals with a normal cortex and those with a severely or moderately eroded cortex determined on panoramic radiographs, although patients with MEC/SEC had lower femoral neck BMD than those with NC (0.688 ± 0.17 vs. 0.814 ± 0.144 g/cm 2 , P<0.012). Histomorphometric analysis also revealed no difference in the parameters of bone formation or resorption between the two groups. Implant failure was observed in only one case. Conclusion: We conclude that there is an association between low femoral neck BMD and poor mandibular bone quality as assessed by panoramic radiography. The loss of one implant (1.2%) is compatible with the literature and cannot be attributed to systemic osteoporosis.

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“…1994, Smith & Zarb 1989). However, the maintenance of crestal bone levels is crucial for the preservation of gingival margins and inter‐dental papillae (Tarnow et al.…”

mentioning

confidence: 99%

Effect of platform switching on crestal bone levels around implants in the posterior mandible: 3 years results from a multicentre randomized clinical trial

Rocha

Wagner

Wiltfang

et al. 2016

J Clinic Periodontology

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ObjectiveEvaluation of differences in the clinical performance and crestal bone levels between implants restored with single crowns with platform‐matched or platform‐switched abutments after 3 years.Material and MethodsThe study enrolled adult patients missing two or more adjacent teeth in the posterior mandible with natural teeth mesial to the implant site. Randomization followed open‐flap implant insertion and the corresponding matching or switching healing abutments placed at surgery. Conventional loading was made with cemented crowns. Clinical follow‐up took place annually after loading up to 3 years. Bone level changes were measured in standardized radiographs as the variation in crestal bone from one evaluation to the next.ResultsSixty‐three patients with a total of 135 implants (66 platform matching, 69 platform switching) were analysed. From surgery to 36 months, mean bone loss was 0.28 ± 0.56 mm for the platform‐switching group and 0.68 ± 0.64 mm for the platform‐matching group. A statistically significant difference was found between groups (p = 0.002) with an estimate of 0.39 mm (0.15–0.64, 95% CI) in favour of platform switching.ConclusionsAfter 3 years, platform‐switching restorations showed a significant effect in the preservation of marginal bone levels compared to platform‐matching restorations.

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Criteria for success of osseointegrated endosseous implants

Cited by 606 publications

References 17 publications

Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

Comparative study of axial and femoral bone mineral density and parameters of mandibular bone quality in patients receiving dental implants

Effect of platform switching on crestal bone levels around implants in the posterior mandible: 3 years results from a multicentre randomized clinical trial

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