Longitudinal analysis on the effect of insertion torque on delayed single implants: A 3‐year randomized clinical study

Marconcini, Simone; Giammarinaro, Enrica; Toti, Paolo; Alfonsi, Fortunato; Covani, Ugo; Barone, Antonio

doi:10.1111/cid.12586

Cited by 38 publications

(91 citation statements)

References 46 publications

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“…Those results are consistent with the recent work of Marconcini et al 14 in which implants placed with high IT (>50 Ncm) exhibited invariably significant crestal bone loss and soft tissue recession compared to implants placed with regular IT at 3-year follow-up. A similar trend was detected in the earlier follow-up of the same group of implants at 1 and 2 years.…”

Section: Discussionsupporting

confidence: 93%

“…Animal studies did not show a negative effect on osseointegration in high IT group (up to 150 Ncm), 10 , 11 whereas human studies showed controversial results. 12 – 14 A recent systematic review indicated that there is no significant difference in bone resorption and implant failure rate between implants placed with high IT (up to 176 Ncm) and low (30 Ncm). 15 However, the authors reported that most studies have a high risk of bias.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, significant marginal bone loss and buccal soft tissue recession were reported in implants placed with high IT (>50 Ncm) compared to those placed with regular IT (<50 Ncm) at 1- and 3-year post-loading follow-up. 14 , 16 …”

Section: Introductionmentioning

confidence: 99%

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The effect of implant placement torque on crestal bone remodeling after 1 year of loading

Aldahlawi

Demeter

Irinakis

2018

CCIDE

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PurposeThe aim of this study was to evaluate and compare crestal bone levels (CBLs) after 1 year of loading of self-tapping bone condensing implants placed with high insertion torque (IT) compared to those placed with lower IT.Materials and methodsA retrospective chart review of 66 consecutive patients who received at least one self-tapping bone condensing implant and were in function for at least 1 year was conducted. On the basis of intrasurgical notes documenting the implant IT, the patient population was divided into group A (implant IT, >55 Ncm) and group B (IT, <55 Ncm). Radiographs taken immediately after insertion and during annual follow-up appointments were evaluated for detecting crestal bone loss. The relationship between IT and crestal bone loss, bone density, and jaw location were analyzed, and a P-value of 0.05 was considered to be statistically significant.ResultsA total of 113 self-tapping bone condensing NobelActive™ implants were placed. The average follow-up period from the placement of the implant restoration was 12.87 (±4.83) months. Six implants were classified as failures resulting in overall survival rate of 94.6%. Implants in group A had a mean IT of 67.35 ± 4.0 Ncm, whereas implants in the group B had a mean IT of 37.9 ± 12.62 Ncm. Implants in group A had statistically significant crestal bone loss compared to implants in group B (0.95 ± 1.60 and 0.18 ± 0.68 mm, respectively). Group A implants placed in the mandible showed significantly more pronounced crestal bone loss (2.12 ± 1.99 mm) compared to those placed in the maxilla (0.25 ± 0.65 mm; P<0.05); however, this was not the case in group B implants.ConclusionImplants inserted with high IT (>55 Ncm) showed more peri-implant bone remodeling than implants inserted with a less assertive IT (<55 Ncm). Bone density and jaw location affect IT and CBLs.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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The effect of implant placement torque on crestal bone remodeling after 1 year of loading

Aldahlawi

Demeter

Irinakis

2018

CCIDE

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“…A recent study of the same group with longer follow‐up (3 years) has observed similar results in terms of bone resorption and a 98.2% success rate in implants placed with regular IT and 91.3% when high IT. These results demonstrated the importance of pay attention on implant placement protocols (Marconcini et al, ).…”

Section: Discussionmentioning

confidence: 75%

Influence of abutment height and implant depth position on interproximal peri‐implant bone in sites with thin mucosa: A 1‐year randomized clinical trial

Pico

Martín-Lancharro

Caneiro

et al. 2019

Clinical Oral Implants Res

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Objectives The aim of this RCT was to assess radiographically the effect of abutment height and depth of placement of platform‐switched implants on interproximal peri‐implant bone loss (IPBL) in patients with thin peri‐implant mucosa. Material and Methods Thirty‐three patients received one prosthesis supported by two implants replacing at least two adjacent missing teeth (66 implants). Patients were randomly allocated and implant insertion depth adapted to abutment height groups (3 mm height group the implants were placed 2 mm subcrestally; 1 mm height group, equicrestally). Clinical and radiological measurements were performed at 3, 6 and 12 months after surgery. Interproximal bone‐level changes were compared between treatment groups using repeated measures mixed ANOVA. The association between IPBL and categorical variables was also analyzed. Results The mean IPBL in 1 mm abutment group was 0.76 ± 0.79 mm at 3 months, 0.92 ± 0.88 mm at 6 months, and 0.95 ± 0.88 mm at 12 months, while in the 3 mm abutment group was 0.06 ± 0.21, 0.07 ± 0.22 mm, and 0.12 ± 0.33 mm, respectively. Significant differences between both groups were observed at every time point. When the influence of patient characteristics and clinical variables was analyzed, no statistically significant differences were also observed. Conclusions The use of long abutments, in combination with subcrestal implant position in sites with thin mucosa, led to lower IPBL in comparison with the use of short abutments.

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“…Numerous variables, including patient habits [ 45 ], surgical technique [ 46 ], soft tissue and alveolar bone thickness [ 47 – 49 ], implant and abutment design (e.g., macro- and microgeometry, connection characteristics, implant crest module, and abutment height) [ 50 – 53 ], number of abutment disconnections [ 54 ], and prosthetic features (e.g., screwed versus cemented retention, inadequate occlusion) [ 55 , 56 ] have been identified as influencing factors in the genesis of peri-implant bone resorption. However, due to their simultaneous action, the exact role and importance of each factor, together with their complex interactions, are not completely clarified yet [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

Immediate Loading of Implant-Supported Single Crowns after Conventional and Ultrasonic Implant Site Preparation: A Multicenter Randomized Controlled Clinical Trial

Stacchi

Lombardi²,

Baldi

et al. 2018

BioMed Research International

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Aim To compare implant survival rate and marginal bone loss (MBL) of immediately loaded single implants inserted by using ultrasonic implant site preparation (UISP) (test) and conventional rotary instrumentation (control). Methods Two single implants were inserted for each patient: after randomization, test site was prepared by using an ultrasonic device (Piezosurgery Touch, Mectron, Italy) and control site was prepared by using the drills of the selected implant system (Premium AZT, Sweden & Martina, Italy), until reaching a final diameter of 3 mm in both groups. Identical implants (3.8x11.5 mm) were inserted in all sites at crestal level. Impressions were taken and screwed resin single crowns with platform-switched provisional abutments were delivered with 48 hours. Periapical radiographs were taken at provisional crown insertion (T0), 6 months (T1) and one year (T2) after prosthetic loading to measure MBL. All data were tested for normality and subsequently analyzed by paired samples t-test and forward multiple linear regression. Results Forty-eight patients were treated in six centers with the insertion of ninety-six implants (48 test; 48 control). Four implants in four patients failed within the first six months of healing (two in test group; two in control group; no difference between groups). Forty patients (age 60.1±10.7 years; 22 female, 18 male) were included in the final analysis. Mean MBL after six months of loading was 1.39±1.03 mm in the test group and 1.42±1.16 mm in the control group (p>0.05) and after one year was 1.92±1.14 mm and 2.14±1.55 mm in test and control, respectively (p>0.05). Conclusions No differences in survival rate and MBL were demonstrated between UISP and conventional site preparation with rotary instruments in immediately loaded dental implants: UISP, with its characteristics of enhanced surgical control and safety in proximity of delicate structures, may be used as a reliable alternative to the traditional drilling systems.

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Longitudinal analysis on the effect of insertion torque on delayed single implants: A 3‐year randomized clinical study

Cited by 38 publications

References 46 publications

The effect of implant placement torque on crestal bone remodeling after 1 year of loading

The effect of implant placement torque on crestal bone remodeling after 1 year of loading

Influence of abutment height and implant depth position on interproximal peri‐implant bone in sites with thin mucosa: A 1‐year randomized clinical trial

Immediate Loading of Implant-Supported Single Crowns after Conventional and Ultrasonic Implant Site Preparation: A Multicenter Randomized Controlled Clinical Trial

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