A clinical comparison of 1-piece versus 2-piece implants: A systematic review and meta-analysis

Limírio, João Pedro Justino de Oliveira; Lemos, Caa; Gomes, Jéssica Marcela de Luna; Minatel, L; Pellizzer, Eduardo Piza

doi:10.1016/j.prosdent.2019.08.002

Cited by 15 publications

(8 citation statements)

References 22 publications

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“…The estimated 2-year survival rate for commercially available implants was calculated with 97% [2]. The present 5-year data on implant survival coincide well with the 5-year survival found for SC and FDP on one- [32] and two-piece titanium implants [33,34].…”

Section: Discussionsupporting

confidence: 78%

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A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-Year Results

Kohal

Spies

Vach

et al. 2020

JCM

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Mid-term data on zirconia oral implants is very rare. Therefore, the aim of this prospective clinical investigation was to evaluate the survival rate and the marginal bone loss of a one-piece zirconia implant after five years. Patient-reported outcomes were also recorded. Zirconia implants to support single crowns (SC) or a 3-unit fixed dental prosthesis (FDP) were placed and subsequently restored. After the insertion of the implants, at prosthetic delivery, and after five years, standardized radiographs were taken to evaluate marginal bone loss (MBL). For bone tissue evaluation, linear mixed models with random intercepts were fitted. Twenty-seven patients received one implant for an SC and 13 patients received two implants for a 3-unit FDP. Three patients each lost one implant for an SC before prosthetic delivery. Thirty-five patients were seen after five years, and no further implant was lost. The cumulative five-year implant survival rate was 94.3%. The MBL from implant installation up to five years was 0.81 mm. The MBL from implant installation to prosthetic delivery was statistically significant (p < 0.001). Patients perceived a significant improvement in function, esthetics, sense, speech, and self-esteem from pretreatment up to the five-year follow-up. The present findings substantiate the clinical applicability of this implant system.

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Section: Discussionsupporting

confidence: 78%

“…No further significant bone loss was observed thereafter. These results are not different to one-or two-piece titanium implants [32,37]. In 10.4% of the implants, a marginal bone gain was observed, which might be related to the osteoconductive surface of this implant type counteracting bone loss after healing.…”

Section: Discussionmentioning

confidence: 57%

A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-Year Results

Kohal

Spies

Vach

et al. 2020

JCM

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“…A systematic review of clinical comparison of one piece versus two piece implants reported marginal bone resorption rates of 0.39 to 1.8 mm and 0.56 to 1.6 mm, respectively [ 42 ]. In the present study, the mean marginal bone resorptions at 6 months and 12 months after prosthesis placement in the MLF group were 0.43 ± 0.24 mm and 0.44 ± 0.25 mm, respectively, and the corresponding values in the MLA group were 0.31 ± 0.24 and 0.33 ± 0.34 mm, which concurs with the results of a systematic review of clinical comparisons of one piece versus two piece implants [ 42 ]. In the present study, no significant intergroup differences or changes were observed at 6 or 12 months after prosthesis placement.…”

Section: Discussionmentioning

confidence: 99%

“…A systematic review of clinical comparison of one piece versus two piece implants reported marginal bone resorption rates of 0.39 to 1.8 mm and 0.56 to 1.6 mm, respectively [42].…”

Section: Discussionmentioning

confidence: 99%

Influence of an Implant Fixture including a Freely Removable Micro-Locking Implant Prosthesis on Peri-Implant Tissues and Implant Prostheses: A Prospective Clinical Study

Shin

Cho

Lim

et al. 2021

JCM

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This prospective study was undertaken to evaluate the clinical usefulness of a newly developed one-piece, screw-free, and micro-locking implant system, which was designed to overcome the shortcomings of the existing implant systems. Thirty-eight patients were recruited and randomly and equally assigned to an experimental group (micro-locking one-piece fixture, MLF; n = 19) or a control group (micro-locking abutment, MLA). Cumulative implant survival rates, marginal bone resorptions, probing depths, plaque indices, bleeding indices, and complications were obtained by using clinical and radiographic findings at 6 months and 12 months after prosthesis placement. Complications that occurred multiple times for single implants were counted. During the 12 month observation period, survival rates were 100% in both groups. No significant intergroup differences were observed for marginal bone resorption, probe depth, or bleeding index. However, mean plaque index was significantly lower in the MLF group at 12 months (p < 0.05). During the 12-month observation period, food impaction (26.3%) was the maincomplication in the MLF group and screw loosening (5.3%), prosthesis detachment (5.3%), and food impaction (5.3%) were observed in the MLA group. The results of this study suggest that the one-piece micro-locking implant system offers a predictable treatment method.

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“…129 It also has a cover shield for load-free healing (Figure 12e,f). 1 de Oliveira Limirio et al 155 systematically investigated the marginal bone loss and survival rate of one-piece and two-piece implants and found that there was no significant difference between the two types of implants. These two structures have their own advantages and disadvantages.…”

Section: Factors Affecting the Survival Rate Of Raimentioning

confidence: 99%

Success Factors of Additive Manufactured Root Analogue Implants

Liu

Wang

Wei

et al. 2022

ACS Biomater. Sci. Eng.

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Dental implantation is an effective method for the treatment of loose teeth, but the threaded dental implants used in the clinic cannot match with the tooth extraction socket. A root analogue implant (RAI) has the congruence shape, which reduces the damage to bone and soft tissue. Additive manufacturing (AM) technologies have the advantages of high precision, flexibility, and easy operation, becoming the main manufacturing method of RAI in basic research. The purpose of this systematic review is to summarize AM technologies used for RAI manufacturing as well as the factors affecting successful implantation. First, it introduces the AM technologies according to different operating principles and summarizes the advantages and disadvantages of each method. Then the influences of materials, structure design, surface characteristics, implant site, and positioning are discussed, providing reference for designers and dentists. Finally, it addresses the gap between basic research and clinical application for additive manufactured RAIs and discusses the current challenges and future research directions for this field.

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A clinical comparison of 1-piece versus 2-piece implants: A systematic review and meta-analysis

Cited by 15 publications

References 22 publications

A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-Year Results

A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-Year Results

Influence of an Implant Fixture including a Freely Removable Micro-Locking Implant Prosthesis on Peri-Implant Tissues and Implant Prostheses: A Prospective Clinical Study

Success Factors of Additive Manufactured Root Analogue Implants

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