Long-Term Outcomes of Tooth-Implant-Supported Rehabilitation of Periodontally Compromised and Treated Patients Refusing Bone Grafting Surgical Therapies

Guarnieri, Renzo; Ippoliti, Stefano

doi:10.1097/id.0000000000000847

Cited by 7 publications

(15 citation statements)

References 39 publications

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“…3,5,7,9,11,12,15 However, some anatomical and pathological disadvantages as well as patient affordability may lead to limitations for additional implant installations, and therefore connecting an implant to a natural tooth may serve as an effective method. 1,2,6,9,15 A viable alternative is rehabilitation with tooth–implant-supported prosthesis, which eliminates the need for inferior alveolar nerve transposition, the risk of bone graft complications, long cantilevers, or the use of removable partial prostheses. 1,2,13,16…”

Section: Discussionmentioning

confidence: 99%

“…1,2,6,9,15 A viable alternative is rehabilitation with tooth–implant-supported prosthesis, which eliminates the need for inferior alveolar nerve transposition, the risk of bone graft complications, long cantilevers, or the use of removable partial prostheses. 1,2,13,16…”

Section: Discussionmentioning

confidence: 99%

“…The esthetic and functional rehabilitation of patients with lateral mandibular resection is difficult due to the lack of supporting tissues for the prosthesis. 1,2…”

Section: Introductionmentioning

confidence: 99%

“…FEA provides the opportunity to investigate the behavior of tissues and anatomical and artificial structures (e.g., implants, dentures and reconstructive plates) and allows for the study of the influence of the different external environments of the program regarding the desired quantity and quality. 1,2,8,16,21–24…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional finite element analysis comparative model of tooth–implant nonrigid fixation

Muradyan

Verlinski

et al. 2020

SIMULATION

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Connecting implants with teeth is sometimes considered for the support of prostheses in partial edentulism, especially in periodontally compromised and surgical treated patients. The aim of this study is the presentation of a model of tooth–implant nonrigid fixation in comparison with implant–implant and implant–tooth rigid fixation by three-dimensional (3D) finite element analysis. As a model, a situation with a mandibular second premolar and two molars edentulism was selected. Two implantation options with three prosthetics designs were considered. The comparative analysis of stress and strain distribution values under vertical 100 and 200 N loading was performed. The highest peri-implant crestal bone stress distribution was observed in the model with the implant–tooth rigid fixation with 200 N vertical loading with results of 136.56 MPa. In the model with implant–tooth nonrigid fixation, the maximum strain value was observed in the tooth–connector zone and the stress distribution was higher in the connectors and the prosthesis pontic zone, with a maximal value of 27.77 MPa. The design of a tooth–implant fixed denture could be suggested as a method of choice for rehabilitation of the posterior edentulous segment in cases when only one distal implant could be installed. Further clinical research is required to obtain reliable validation data for the proposed method.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…The esthetic and functional rehabilitation of patients with lateral mandibular resection is difficult due to the lack of supporting tissues for the prosthesis. 1,2…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three-dimensional finite element analysis comparative model of tooth–implant nonrigid fixation

Muradyan

Verlinski

et al. 2020

SIMULATION

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“…Also, the extraction of healthy teeth to avoid tooth-implant connections should be avoided. 11,[16][17][18][19][20][21] Therefore, the evaluation and quantification of tensions over the supporting tissues and abutment systems in tooth-implant-supported FPDs are essential since damage to prosthetic components or biological structures is attributed to biomechanics. 11,14 The finite element analysis (FEA) is an important tool for the simulation and analysis of tensions, displacements, and deformations in implants and prosthetic abutments, and evaluating the integrity at the bone level.…”

Section: Introductionmentioning

confidence: 99%

Number of dental abutments influencing the biomechanical behavior of tooth‒implant-supported fixed partial dentures: A finite element analysis

Oliveira

Sordi

Cruz

et al. 2020

J Dent Res Dent Clin Dent Prospects

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Background. Local or systemic issues might prevent installing a sufficient number of dental implants for fixed prosthetic rehabilitation. Splinting dental implants and natural teeth in fixed dentures could overcome such limitations. Therefore, this study aimed to evaluate the influence of the number of dental abutments in the biomechanics of tooth‒implant-supported fixed partial dentures (FPDs). The null hypothesis was that increasing the number of abutment teeth would not decrease the stress over the abutments and surrounding bone. Methods. Left mandibular lateral incisor, canine, premolars, and molars were reconstructed through computed tomography and edited using image processing software to represent a cemented fixed metal‒ceramic partial denture. Three models were set to reduce the number of abutment teeth: 1) lateral incisor, canine, and first premolar; 2) canine and first premolar; 3) the first premolar. The second premolar and first molar were set as pontics, and the second molar was set as an implant abutment in all the models. Finite element analyses were performed under physiologic masticatory forces with axial and oblique loading vectors. Results. After simulation of axial loads, the stress peaks on the bone around the implant, the bone around the first premolar, and prosthetic structures did not exhibit significant changes when the number of abutment teeth decreased. However, under oblique loads, decreasing the number of abutment teeth increased stress peaks on the surrounding bone and denture. Conclusion. Increasing the number of dental abutments in tooth‒implant-supported cemented FPD models decreased stresses on its constituents, favoring the prosthetic biomechanics.

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Limited marginal bone loss in implant‐supported fixed full‐arch rehabilitations after 5 years of follow‐up

Galindo‐Moreno

Ravidà

Catena

et al. 2022

Clinical Oral Implants Res

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The aim of the present study was to evaluate the 5-year results in terms of marginal bone level (MBL) around implants supporting fixed full-arch metal-ceramic restorations in a series of cases of patients who had lost their teeth in that dental arch because of severe periodontal disease. Material and Methods: A retrospective cohort study was designed to evaluate the 5-year MBL results of OsseoSpeed™ Astra Tech TX implants with internal tapered conical connection. Age, gender, bone substratum, smoking habits, history of periodontitis, and prosthetic features were recorded. Mixed linear model was used to determine the influence of the different variables on MBL. Results: In this series, a total of 160 implants placed in 19 patients were evaluated. No implant failure was reported during the 5 years of follow-up. Only 14 (8.75%) implants had more than 2 mm of MBL. Abutment height, F(3,142) = 6.917, p < .001, and implant diameter, F(1,141) = 15.059, p < .001, were determined to be statistically associated with MBL. No other effect was significant. Pairwise comparisons showed that MBL was larger for abutment height = 1 (MBL = −0.987, SE = 0.186) compared with the remaining heights [−0.335 (0.171), −0.169 (0.192) and −0.247 (0.267), 2, 4 and 6 mm, respectively]. MBL was larger for narrow (−0.510, SE = 0.169) than for wide implants (−0.364, SE = 0.190). Conclusion:The current study demonstrates that the vast majority of internal conical connection implants supporting fixed full-arch metal-ceramic restorations do not suffer from relevant MBL after 5 years in function. Particularly, those implants with transmucosal abutments longer than 2 mm show less than 0.5 mm from the implant shoulder to the marginal bone.

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Long-Term Outcomes of Tooth-Implant-Supported Rehabilitation of Periodontally Compromised and Treated Patients Refusing Bone Grafting Surgical Therapies

Cited by 7 publications

References 39 publications

Three-dimensional finite element analysis comparative model of tooth–implant nonrigid fixation

Three-dimensional finite element analysis comparative model of tooth–implant nonrigid fixation

Number of dental abutments influencing the biomechanical behavior of tooth‒implant-supported fixed partial dentures: A finite element analysis

Limited marginal bone loss in implant‐supported fixed full‐arch rehabilitations after 5 years of follow‐up

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