The Effects of High Insertion Torque Versus Low Insertion Torque on Marginal Bone Resorption and Implant Failure Rates

Berardini, Marco; Trisi, Paolo; Sinjari, Bruna; Rutjes, Anne W S; Caputi, Sergio

doi:10.1097/id.0000000000000422

Cited by 46 publications

(41 citation statements)

References 22 publications

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“…In the present study, no correlation between IT and marginal bone loss after one year could be seen, which is in line with the conclusions of a recent meta-analysis of the literature including studies with reported ITs from < 25 to 176 Ncm [35]. Interestingly, our data showed that also low IT resulted in ISQ levels that are considered to indicate sufficient stability, even for early loading protocols [30, 36].…”

Section: Discussionsupporting

confidence: 91%

“…Concerns have been expressed that too high IT may induce pressure necrosis and marginal bone resorption [35]. In the present study, no correlation between IT and marginal bone loss after one year could be seen, which is in line with the conclusions of a recent meta-analysis of the literature including studies with reported ITs from < 25 to 176 Ncm [35].…”

Section: Discussionsupporting

confidence: 90%

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A One-year Follow-up Study of a Tapered Hydrophilic Implant Design Using Various Placement Protocols in the Maxilla

Zwaan¹,

Bogaerde²,

Sahlin

et al. 2016

TODENTJ

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Purpose:To study the clinical/radiographic outcomes and stability of a tapered implant design with a hydrophilic surface when placed in the maxilla using various protocols and followed for one year.Methods:Ninety-seven consecutive patients treated as part of daily routine in two clinics with 163 tapered implants in healed sites, in extraction sockets and together with bone augmentation procedures in the maxilla were evaluated after one year in function. Individual healing periods varying from 0 to 6 months had been used. Insertion torque (IT) and resonance frequency analysis (RFA) measurements were made at baseline. Follow-up RFA registrations were made after 6 and 12 months of loading. The marginal bone levels were measured in intraoral radiographs from baseline and after 12 months. A reference group consisting of 163 consecutive straight maxillary implants was used for the comparison of baseline IT and RFA measurements.Results:Five implants failed before loading, giving an implant survival rate of 96.9% and a prosthesis survival rate of 99.4% after one year. The mean marginal bone loss after one year was 0.5 mm (SD 0.4). The mean IT was statistically significantly higher for tapered than for straight reference implants (41.3 ± 12.0 Ncm vs 33.6 ± 12.5 Ncm, p < 0.001). The tapered implants showed a statistically insignificantly higher mean ISQ value than the straight references implants (73.7 ± 6.4 ISQ vs 72.2 ± 8.0 ISQ, p=0.119). There was no correlation between IT and marginal bone loss. There was a correlation between IT and RFA measurements (p < 0.001).Conclusion:The tapered implant showed a high survival rate and minimal marginal bone loss after one year in function when using various protocols for placement. The tapered implant showed significantly higher insertion torque values than straight reference implants.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 90%

A One-year Follow-up Study of a Tapered Hydrophilic Implant Design Using Various Placement Protocols in the Maxilla

Zwaan¹,

Bogaerde²,

Sahlin

et al. 2016

TODENTJ

View full text Add to dashboard Cite

show abstract

“…32 However, in many articles, insertion torque and implant survival have been reported to be irrelevant. 34 However, implant failure rates were significantly higher for a low insertion torque of <20 Ncm in this study over a long-term (10-year) follow-up. All of their implants were successful, and a histologic examination showed that the bone-implant contact was not related with the insertion torque.…”

Section: Discussioncontrasting

confidence: 56%

“…33 The systematic review of Berardini and colleagues also found no significant difference in implant failure between fixtures installed with high and low insertion torques. 34 However, implant failure rates were significantly higher for a low insertion torque of <20 Ncm in this study over a long-term (10-year) follow-up.…”

Section: Discussioncontrasting

confidence: 56%

Retrospective radiographic observational study of 1692 Straumann tissue‐level dental implants over 10 years: I. Implant survival and loss pattern

Kim

Jung

Cho

et al. 2018

Clin Implant Dent Rel Res

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“…Khayat These finding were confirmed by a recent meta-analysis which concluded that implant failure and marginal bone loss were not affected by high insertion torque. 43 On the contrary, high insertion torque is necessary for good primary stability, which is essential for prevention of micromotion and the establishment of osseointegration. 44 Primary stability is largely a property of the implant size, shape, and width, which is provided by a tapered design and increasing implant diameter.…”

Section: Discussionmentioning

confidence: 99%

A prospective study on ultra‐wide diameter dental implants for immediate molar replacement

Hattingh

Hommez

Bruyn

et al. 2018

Clin Implant Dent Rel Res

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Background Although wide diameter implants are well documented, little is known about ultra‐wide diameter implants (>6 mm). This study evaluates the clinical outcome of ultra‐wide diameter implants, placed in molar extraction sockets. Materials and Methods Ultra‐wide diameter implants (7‐9 mm) were placed immediately after molar extraction in a 1‐stage protocol, without raising a flap or using any bone grafts. After 4 months, the implant was loaded with a single screw‐retained crown. Bone loss was evaluated using peri‐apical radiographs. Plaque and bleeding were recorded. Crown and papilla dimensions were measured and compared with the contra‐lateral tooth. Results Fifty‐one patients (36 male and 15 female), mean ages 61 years old, were treated with 26 implants in the maxilla and 25 implants in the mandible. The majority had a thick (#19) or medium (#31) biotype. After a mean‐follow‐up period of 23 months, the mean bone level was located 1.16 mm apical of the implant‐abutment junction (SD 0.42, range 0.00‐2.45) while the actual bone remodeling associated with socket healing resulted in a mean coronal movement of the bone level of 0.15 mm. The mean insertion torque was 116 Ncm (SD 53, range 10‐250). There were no differences in papilla height (P = .55), crown length (P = .32), zenith (P = .84), and bucco‐palatal dimensions (P = .38). There was a significant difference in the mesio‐distal dimension (P = .01). Mean probing depth was 2.59 mm at the implant and 2.23 mm at the contra‐lateral tooth (P = .001). There was significantly more plaque at the tooth compared to the implant (P = .01), but there was no significant difference in terms of bleeding on probing (P = .08). Patient satisfaction was high with 72.5% of the patients experiencing no problems at all. Conclusions Ultra‐wide diameter implants have a predictable outcome, demonstrating very little bone loss. Papilla and crown dimensions were comparable to the contra‐lateral natural tooth.

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The Effects of High Insertion Torque Versus Low Insertion Torque on Marginal Bone Resorption and Implant Failure Rates

Abstract: The current review indicated that there is no significant difference in marginal bone resorption and implant failure rate between implants inserted with high or low insertion torque values.

Cited by 46 publications

References 22 publications

A One-year Follow-up Study of a Tapered Hydrophilic Implant Design Using Various Placement Protocols in the Maxilla

A One-year Follow-up Study of a Tapered Hydrophilic Implant Design Using Various Placement Protocols in the Maxilla

Retrospective radiographic observational study of 1692 Straumann tissue‐level dental implants over 10 years: I. Implant survival and loss pattern

A prospective study on ultra‐wide diameter dental implants for immediate molar replacement

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