Effect of different implant placement depths on crestal bone levels and soft tissue behavior: a randomized clinical trial

Siqueira, Rafael; Fontão, Flávia Noemy Gasparini Kiatake; Sartori, Ivete Aparecida de Mattias; Santos, Paulo Gustavo Freitas; Bernardes, Sérgio Rocha; Tiossi, Rodrigo

doi:10.1111/clr.12946

Cited by 31 publications

(69 citation statements)

References 33 publications

(79 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this investigation, they obtained higher crestal bone loss in both groups in comparison with Vervaeke et al () and the present study. This could be attributed to the high IT threshold (>45 Ncm 2 ) used in this study (de Siqueira et al, ).…”

Section: Discussionmentioning

confidence: 76%

“…In cases with thin mucosa, is advisable to place the implant slightly deeper (subcrestally), in such a way the mucosa can hide the long abutment, avoiding aesthetic complications, and at the same time allowing the establishment of the biologic width. This concept was investigated by several authors (Aimetti et al, ; Koutouzis et al, ; Palaska, Tsaousoglou, Vouros, Konstantinidis, & Menexes, ; de Siqueira et al, ), and different results were obtained. While some authors observed better bone preservation placing bone‐level implants in a subcrestal position (Aimetti et al, ; Koutouzis et al, ), Palaska et al () concluded that the connection pattern between fixture and abutment, rather than vertical implant placement in relation to crestal bone level, seems to have more relevance.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…A total of 11 patients from the previously published 8‐month data (de Siqueira et al, ) completed a mean follow‐up time of 5.1 ± 0.1 years. No patients dropped out or were excluded during the follow‐up time, and all patients returned for the scheduled follow‐up evaluations.…”

Section: Resultsmentioning

confidence: 99%

“…Radiographs were taken by the same operator immediately (baseline) after implant placement and at the 4‐, 8‐, and 60‐month follow‐up returns (T0, T4, T8, and T60, respectively) (Figure ). Intraoral radiographs at all time points allowed for the evaluation of CB changes and specialized software (Sidexis XG 2.5, Sirona) was used for linear measurements of CB changes (de Siqueira et al, ). Measurements of the equicrestal implants were performed from the bone crest to the implant‐abutment interface.…”

Section: Methodsmentioning

confidence: 99%

“…Measurements of the equicrestal implants were performed from the bone crest to the implant‐abutment interface. Measurements on subcrestal implants were performed from the most apical region of the radiolucent image to the implant‐abutment interface as described in previous article de Siqueira et al (). One calibrated examiner performed all the measurements.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of different implant placement depths on crestal bone levels and soft tissue behavior: A 5‐year randomized clinical trial

Siqueira

Fontão²,

Sartori³

et al. 2020

Clinical Oral Implants Res

Self Cite

View full text Add to dashboard Cite

Objectives This randomized clinical trial analyzed the long‐term (5‐year) crestal bone changes and soft tissue dimensions surrounding implants with an internal tapered connection placed in the anterior mandibular region at different depths (equi‐ and subcrestal). Materials and methods Eleven edentulous patients were randomly divided in a split‐mouth design: 28 equicrestal implants (G1) and 27 subcrestal (1–3 mm) implants (G2). Five implants were placed per patient. All implants were immediately loaded. Standardized intraoral radiographs were used to evaluate crestal bone (CB) changes. Patients were assessed immediately, 4, 8, and 60 months after implant placement. The correlation between vertical mucosal thickness (VMT) and soft tissue recession was analyzed. Sub‐group analysis was also performed to evaluate the correlation between VMT and CB loss. Rank‐based ANOVA was used for comparison between groups (α = .05). Results Fifty‐five implants (G1 = 28 and G2 = 27) were assessed. Implant and prosthetic survival rate were 100%. Subcrestal positioning resulted in less CB loss (−0.80 mm) when compared to equicrestal position (−0.99 mm), although the difference was not statistically significant (p > .05). Significant CB loss was found within the G1 and G2 groups at two different measurement times (T4 and T60) (p < .05). Implant placement depths and VMT had no effect on soft tissue recession (p > .05). Conclusions There was no statistically significant difference in CB changes between subcrestal and equicrestal implant positioning; however, subcrestal position resulted in higher bone levels. Neither mucosal recession nor vertical mucosa thickness was influenced by different implant placement depths.

show abstract

Employment of U‐Shape Technique at Reentry Surgery for Papillae Coronal Migration on the Rehabilitation of Anterior Single Implant: 3‐Year Follow‐Up Case Report

Brum

Galarraga

Magrin

et al. 2020

Clin Adv Periodontics

View full text Add to dashboard Cite

Introduction The rehabilitation of a maxillary single dental implant represents a great challenge at clinical practice. Harmony among the implant‐supported crown and adjacent teeth is required in which concerns pink and white esthetics. The aim of the present case report is to depict a multidisciplinary treatment in which the U‐shape flap technique for papillae preservation at second stage surgery was used. Case Presentation One female patient presenting an un‐rehabilitated dental implant at the left central incisor position sought treatment at the Centre of Education and Research on Dental Implants (CEPID). Alterations of color, shape, and position were observed on the anterior maxillary teeth. For proper treatment planning, radiograph, wax‐up, and mock‐up were performed. Second stage surgery was performed by the U‐shape flap technique. A trunnion abutment was installed at the implant and a provisional subcontoured cemented crown was manufactured. Dental bleaching, feldspathic veneers, and a ceramic crown were performed. Oral hygiene instructions were recommended. Follow‐up appointments were set at 1.5 and 3 years after restoration placement. After 3‐year follow‐up, soft tissue stability and health were preserved and papillae coronal migration around the single dental implant was observed. A complication‐free treatment was reached, and patient demonstrated satisfaction towards esthetic and function. Conclusions The use of U‐shape technique at second stage surgery associated to adequate prosthetic contour improved soft tissue esthetic outcomes, while the multidisciplinary treatment planning provided adequate solutions, refining harmony between dental and implant‐supported components.

show abstract

Effect of different implant placement depths on crestal bone levels and soft tissue behavior: a randomized clinical trial

Abstract: Different implant placement depths do not influence crestal bone changes. Soft tissue behavior is not influenced by different implant placement depths or by the amount of keratinized tissue.

Cited by 31 publications

References 33 publications

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

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

Effect of different implant placement depths on crestal bone levels and soft tissue behavior: A 5‐year randomized clinical trial

Employment of U‐Shape Technique at Reentry Surgery for Papillae Coronal Migration on the Rehabilitation of Anterior Single Implant: 3‐Year Follow‐Up Case Report

Contact Info

Product

Resources

About