One‐year clinical outcomes of locking taper Equator attachments retaining mandibular overdentures to narrow diameter implants

Marcello-Machado, Raissa Micaella; Faot, Fernanda; Schuster, Alessandra Julie; Bielemann, Amália Machado; Júnior, Otacílio Luiz Chagas; Cury, Altair Antoninha Del Bel

doi:10.1111/cid.12605

Cited by 25 publications

(34 citation statements)

References 43 publications

(121 reference statements)

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“…After the 3-month healing period, the healing caps were replaced by an Equator attachment and the implant-retained mandibular overdentures were loaded. 36 After 3 months of implant-retained overdenture usage, the ST test was performed again. Experienced operators performed all masticatory tests (RMMM) and all weighing (AJS).…”

Section: Methodsmentioning

confidence: 99%

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Miranda

Possebon

Schuster

et al. 2019

Journal of Prosthodontics

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Purpose To investigate the influence of impaired masticatory function on the oral health‐related quality of life of conventional complete denture wearers before and after the transition to implant‐retained mandibular overdentures. Materials and Methods Masticatory function and oral health‐related quality of life were evaluated in 40 edentulous patients after 3 months of adaptation to complete dentures and after transition to implant‐retained mandibular overdentures. Masticatory function was evaluated through the swallowing threshold test with a standardized portion of an artificial test food (Optocal) to determine median particle size (×50) and homogenization index (B). After the test, the masticatory function outcomes were used to categorize patients in 2 groups according to chewing performance: (i) satisfactory or (ii) unsatisfactory. The cutoff value for ×50 was based on a preestablished value of 3.68 mm, whereas for the B index, median values were adopted for categorization. The oral health‐related quality of life was analyzed via the Oral Health Impact Profile for Edentulous Adults (OHIP‐EDENT) questionnaire. The Mann‐Whitney test was used to compare masticatory function outcomes and OHIP‐EDENT scores, and associations were checked using the Spearman correlation test and multiple linear regression. Results Masticatory function was significantly correlated with functional limitation (p = 0.02) and physical disability (p = 0.04) for complete denture wearers with unsatisfactory masticatory function. After the transition to implant‐retained mandibular overdentures, only the psychological discomfort domain (p = 0.02) was influenced by the masticatory function category. Multiple linear regression analysis revealed that only the functional limitation domain (p < 0.001) of the complete denture wearers was associated with masticatory function outcomes. Conclusions Implant‐retained mandibular overdentures eliminate the problems that lead to functional limitations, consequently improving masticatory function and oral health‐related quality of life of these individuals; however, patients with unsatisfactory masticatory function after transition to implant‐retained mandibular overdentures still experience more psychological discomfort.

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Section: Methodsmentioning

confidence: 99%

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Miranda

Possebon

Schuster

et al. 2019

Journal of Prosthodontics

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“…Implant surgery drill sequence was followed to install two NDIs (ø2.9 × 10 mm, Facility NeoPoros, Neodent Osseointegrated Implants, Curitiba, Brazil). The NDIs used in this study were made with titanium grade V, have a cylindrical implant body design with a 5‐degree angled morse connection, a double lead thread design, a frictional attachment system (Equator attachment, Neodent Osseointegrated Implants, Curitiba, Brazil), and a diameter of the prosthetic settlement of 3.5 mm; the attachments were installed with the aid of a hammer . Bone quality was determined during osteotomies according to the subjective perception of an experienced surgeon based on the bone density (dense bone and extremely soft bone) .…”

Section: Methodsmentioning

confidence: 99%

Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial

Bielemann

Marcello-Machado

Schuster

et al. 2018

J of Periodontal Research

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Background Biological responses to different loading protocols during the bone healing phase in subjects with long time since edentulism, rehabilitated with narrow diameter implants (NDIs) to retain mandibular overdentures (MOs), are still unavailable. Objective This randomized clinical trial compared the peri‐implant health, implant stability, and concentrations of pro‐ and anti‐inflammatory cytokines in the peri‐implant crevicular fluid (PICF) in mandibular edentulous patients under conventional (CL) and immediate loading (IML) during healing. Methodology Twenty totally edentulous patients received two NDIs (2.9 × 10 mm, Facility NeoPoros) placed in mandible anterior region and were randomly assigned to two loading protocols: CL (n = 10) and IML (n = 10). The following clinical outcomes were evaluated 1, 2, 4, 8, and 12 weeks after surgery: (a) peri‐implant tissue health (gingival index‐GI, plaque index‐PI, calculus‐presence CP, probing depth‐PD, and bleeding on probing‐BOP); (b) implant stability quotient (ISQ); and (c) IL‐1β, IL‐6, IL‐10, and TNF‐α levels in the PICF analyzed by ELISA. Results The CL group showed significantly higher CP scores at weeks 8 and 12. The IML group showed significantly higher GI from the first week onwards. The IML group presented significantly lower PD at all follow‐up times, and higher BOP rates than CL at week 12. The ISQ values of the CL group were higher than those of the IML group, except at week 4. The IML group released significantly more TNF‐α between weeks 1 and 4 and more IL‐1β during week 4‐12, while releasing less IL‐6 until week 8, mainly at week 2 (−47.6%). The release of IL‐10 was similar for both groups and increased progressively over time. At week 12, the IML group released 45.74% more IL‐10 than the CL group. The survival rates were 95% and 90% for CL and IML, respectively. Conclusion The IML group presented more favorable PD at all evaluation times; the differences between the other clinical parameters were less systematic. The implant stability and the inflammatory marker concentrations were more stable in the CL group.

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“…Only 35 of the 243 (14.4%) SDIs were designed to support a fixed bridge with cantilever, and no crown‐root ratio >2 or immediate loading protocol was applied. In certain situations involving high occlusal demand, new Ti‐Zr implants with high mechanical stress resistance are strongly recommended to avoid this complication …”

Section: Discussionmentioning

confidence: 99%

Retrospective study on the clinical outcomes of small‐diameter implants supporting fixed prostheses without bone augmentation in the posterior region after 2 to 12 years

Zhang

2019

Clin Implant Dent Rel Res

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Background Small‐diameter implants (SDIs: diameter <3.5 mm) are often chosen as an alternative to bone augmentation in clinical practice, but the scientific evidence regarding SDI application in the posterior area remains deficient. Purpose To evaluate the clinical and radiographic outcomes of SDIs supporting fixed prostheses without bone augmentation in the posterior region, and to analyze the potential influencing factors related to SDI failures. Materials and Methods Clinical and radiographic data of 243 SDIs in 156 patients were retrospectively assembled after 2 to 12 (mean 4.75) years of follow‐up. Implant and prosthesis failures, mechanical and biological complications, and radiographic marginal bone loss (MBL) were evaluated. The influence of patient/implant characteristics and prosthetic design on SDI failures was investigated. Results Five implants in five patients failed, contributing to 10‐year cumulative survival rates of 97.9% on an implant‐based analysis and 96.8% on a patient‐based analysis. Biological complications and mechanical complications were detected in 22 (9.1%) and 31 (12.8%) of implants, respectively. No implant fracture was detected. Peri‐implant MBL during 10 years was 0.60 ± 0.90 mm on average. The implant type (bone‐level or tissue‐level) was the only factor that significantly influenced SDI failures. Conclusion SDIs supporting fixed prostheses in the posterior region achieved predictable long‐term clinical outcomes. However, tissue‐level titanium SDIs should be avoided where possible.

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One‐year clinical outcomes of locking taper Equator attachments retaining mandibular overdentures to narrow diameter implants

Abstract: NDI connected to locking taper Equator attachments showed a stable clinical behavior as an MO retainer for edentulous patients with clinical mandibular atrophy.

Cited by 25 publications

References 43 publications

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial

Retrospective study on the clinical outcomes of small‐diameter implants supporting fixed prostheses without bone augmentation in the posterior region after 2 to 12 years

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