scholarly journals 1-Year Evaluation of OT Bridge Abutments for Immediately Loaded Maxillary Fixed Restorations: A Multicenter Study

2021 ◽  
Author(s):  
Rosario Acampora ◽  
Marco Montanari ◽  
Roberto Scrascia ◽  
Emiliano Ferrari ◽  
Massimo Pasi ◽  
...  
Keyword(s):  
Survival Rates ◽  
Health Impact ◽  
P Value ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Bridge Abutments ◽  
Bleeding On Probing ◽  
Fixed Dental Prosthesis ◽  
Low Profile ◽  
One Year

Abstract Objective  Preliminary data on survival and success rates of immediately loaded, maxillary, screw-retained, implant-supported, fixed restorations delivered on narrow and low-profile OT Equator abutments (OT Bridge, Rhein’83) were evaluated. Materials and Methods This retrospective study evaluated data collected from patients rehabilitated with OT Bridge prosthetic concept between November 2017 and February 2019 in six different centers. Outcome measures were implant and prosthetic survival rates, biological and technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), bleeding on probing, and plaque index. Results A total of 76 implants were inserted in 14 patients. Patients were followed for a mean period of 15.8 months (range = 12–24). All the patients receive OT Equator (Rhein'83) as intermediate abutments. One year after loading, one implant failed (1.3%). None of the prosthesis failed. One prosthetic complication was experienced in one patient. Three out of 76 implants were connected to the prosthetic framework using only the Seeger system, without screw. Difference in OHIP values was statistically significant (71.9 ± 8.5; p = 0.000). One year after loading, MBL was 0.21 ± 0.11 mm and p-value was 0.000. One year after loading, 8.7% of the examined implant sites present positive bleeding on probing, while 6.4% of the implant sites presented plaque. Conclusion The OT Equator abutments (Rhein'83) showed successful results when used to support maxillary fixed dental prosthesis delivered on four to six implants. High implant and prosthetic survival rates, very low complications, high patient satisfaction, and good biological parameters, including only 0.2 mm of bone remodeling were experienced one year after function. Further studies are needed to confirm these preliminary results.

scholarly journals A One-Year, Multicenter, Retrospective Evaluation of Narrow and Low-Profile Abutments Used to Rehabilitate Complete Edentulous Lower Arches: The OT Bridge Concept

Prosthesis ◽  
2020 ◽  
Vol 2 (4) ◽  
pp. 352-361
Author(s):  
Marco Montanari ◽  
Roberto Scrascia ◽  
Gabriele Cervino ◽  
Massimo Pasi ◽  
Emiliano Ferrari ◽  
...  
Keyword(s):  
Survival Rates ◽  
Health Impact ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Bleeding On Probing ◽  
Fixed Dental Prosthesis ◽  
Technical Complications ◽  
Low Profile ◽  
The Difference ◽  
One Year

Purpose: To evaluate preliminary data on survival and success rates of immediately loaded, screw-retained, restorations delivered on lower arches using narrow and low-profile OT Equator abutments. Methods: This retrospective study analyzed data of patients rehabilitated with OT Bridge (fixed prosthetic system built on OT Equator) prosthetic concept from November 2017 to February 2019 in five different centers. Outcome measures were implant and prosthetic survival rates, biological and technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), bleeding on probing, and plaque index. Results: A total of 60 implants were inserted in 12 patients. Patients were followed for a mean period of 15.8 months (range 12–24). All the patients received OT Equator as intermediate abutments. Four out of 60 implants were connected to the prosthetic framework using only the Seeger system, without a screw. One year after loading, three implants failed (implant survival rate of 95.0%) in two patients. No prosthesis failed and no major biological and technical complications were experienced. One year after initial loading, the marginal bone level was 0.32 ± 0.2 mm. The OHIP before treatment was 87.7 ± 6.0. One year after treatment, OHIP was 23.6 ± 1.2. The difference was statistically significant (64.1 ± 7.2; p = 0.0000). One year after loading, 8.9% of the examined implant sites present positive bleeding on probing, while 5.8% of the implant sites presented plaque. Conclusions: The OT Equator abutments showed successful results when used to support mandible fixed dental prosthesis delivered on 4–6 implants. Whole prosthetic survival and success rates, high patient satisfaction, and good biological parameters were experienced one year after function. Further prospective studies are needed to confirm these preliminary results.

scholarly journals Effectiveness of Ball Attachment Systems in Implant Retained- and Supported-Overdentures: A Three- to Five-Year Retrospective Examination

2019 ◽  
Vol 7 (3) ◽  
pp. 84
Author(s):  
Luca Ortensi ◽  
Matteo Martinolli ◽  
Carlo Borromeo ◽  
Francesco Mattia Ceruso ◽  
Marco Gargari ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Survival Rates ◽  
Health Impact ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Technical Complications ◽  
Implant Overdenture ◽  
Biological Outcomes ◽  
Retrospective Examination

Purpose: To evaluate implant and prosthetic survival rates, complications, patient satisfaction, and biological outcomes of patients rehabilitated with a ball attachment system for implant retained- and supported-overdentures (IOV), which was in function for 3 to 5 years. Methods: This retrospective study evaluated data collected from patients treated between April 2001 and May 2018 with IOV on splinted and non-splinted implants and a ball attachment system. Patients were followed for 36 to 206 months (mean follow-up was 128.1 ± 51.9 months). Data were collected at the 3- and 5-year follow-up examination. Outcome measures were implant and prosthetic survival rates, technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), and periodontal parameters (bleeding on probing and plaque index). Results: A total of 46 patients (16 males and 30 females) with 124 implants were included in this study. Twenty-five implant-retained overdentures were delivered on 53 unsplinted implants, while the other 21 patients received an implant-supported overdentures and the implants were splinted. At the five-year follow-up examination, one implant and one prosthesis failed in the unsplinted group, resulting in a cumulative survival rate of 97.8% at the patient level. Two minor technical complications were experienced. Conclusions: Implant overdenture retained or supported by ball attachment systems showed high implant and prosthetic survival and success rates. A low number of complications, high patient satisfaction, and successful biological parameters were experienced in the mid-term follow-up. Data need to be confirmed by further randomized trials.

scholarly journals Oral Health Impact Profile and Self-perception of Patients in Brazil with Implant-supported Prostheses

2020 ◽  
Author(s):  
Bruno Briancini Mattiello ◽  
Marcia Borba ◽  
Diego José Gambin ◽  
Thamiris Nogueira Sacker ◽  
Joao Paulo De Carli ◽  
...  
Keyword(s):  
Oral Health ◽  
Social Life ◽  
Health Impact ◽  
Cross Sectional ◽  
Bleeding On Probing ◽  
Level Of Satisfaction ◽  
Masticatory Ability ◽  
Edentulous Patients ◽  
One Year ◽  
Lower Arch

Introduction: Implant supported prosthetic rehabilitation could re-establish the comfort and bring a confident smile to patients, allowing them to eat properly and to lead a social life free of traumas and complexes. Aim: To verify which type of implant-supported rehabilitation- overdenture or fixed denture effectively restores the comfort of the lower arch of partial edentulous patients. Materials and Methods: A cross-sectional clinical study was performed in patients with completely edentulous lower arch treated with either overdenture (2 implants) or fixed denture (5-6 implants), obtained from a sample from Southern Brazil. The study sample was composed of 37 volunteers who met the inclusion and exclusion criteria. Half of them were rehabilitated with overdenture (O- ring and bar) and the other half with fixed denture (Branemark protocol). A clinical evaluation was performed to obtain the Index of Plaque (PI) and bleeding on probing indexes (BI). Three questionnaires were applied to quantify the patient’s level of satisfaction with their prosthetic treatment (OHIP-EDENT and masticatory ability questionnaires) up to one year after installation of the prosthesis. Results were analysed by the Mann-Whitney test (α=0.05). Results: All treatments were considered satisfactory regarding masticatory ability. However, fixed dentures had a statistically higher level of satisfaction compared to overdenture. There were significant differences in the mean PI and BI index between the groups. Conclusion: Both rehabilitation treatments increased the satisfaction and improved the oral health and masticatory ability of edentulous patients. However, although patients rehabilitated with fixed dentures presented higher level of satisfaction, they also showed higher plaque and bleeding on probing indexes.

scholarly journals Short Implants in Partially Edentulous Maxillae and Mandibles: A 10 to 20 Years Retrospective Evaluation

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Diego Lops ◽  
Eriberto Bressan ◽  
Gianluca Pisoni ◽  
Niccolò Cea ◽  
Boris Corazza ◽  
...  
Keyword(s):  
High Reliability ◽  
Survival Rates ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Probing Depth ◽  
Short Implants ◽  
Single Crown ◽  
The Difference ◽  
Long Term Prognosis

Purpose.Evaluation of the short implant (8 mm in height) long-term prognosis and of the implant site influence on the prognosis.Methods.A longitudinal study was carried out on 121 patients (57 males and 64 females) consecutively treated with 257 implants. 108 implants were short.Results.Four (3.6%) short implants supporting fixed partial prostheses failed. Similarly, three standard implants supporting fixed partial prostheses and one supporting single-crown prosthesis failed. Mean marginal bone loss (MBL) and probing depth (PD) of short and standard implants were statistically comparable (P>.05). The 20-year cumulative survival rates of short and standard implants were 92.3 and 95.9%, respectively. The cumulative success rates were 78.3 and 81.4%. The survival rates of short implants in posterior and anterior regions were comparable: 95 and 96.4%, respectively. The difference between survival rates was not significant (P>.05).Conclusions.The high reliability of short implants in supporting fixed prostheses was confirmed. Short and standard implants long-term prognoses were not significantly different. The prognosis of short implants in posterior regions was comparable to that of in anterior regions. Nevertheless, a larger sample is required to confirm this trend.

scholarly journals Multicenter Retrospective Analysis of Implant Overdentures Delivered with Different Design and Attachment Systems: Results Between One and 17 Years of Follow-Up

2018 ◽  
Vol 6 (4) ◽  
pp. 71 ◽  
Author(s):  
Marco Tallarico ◽  
Luca Ortensi ◽  
Matteo Martinolli ◽  
Alessio Casucci ◽  
Emiliano Ferrari ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Computer Aided Design ◽  
Statistical Significance ◽  
Survival Rates ◽  
Biological Parameters ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Mechanical Complications ◽  
Computer Aided

Purpose: To analyze implant and prosthetic survival rates, complications, patient satisfaction, and biological parameters of patients rehabilitated with implant overdentures (IOV) on splinted and nonsplinted implants and different attachment systems, in function for one to 17 years. Methods: This retrospective study evaluated data collected from patients rehabilitated with implant overdentures between January 2001 and December 2016 in nine different centers. Outcome measures were implant and prosthetic success rates, mechanical complications, marginal bone loss (MBL), oral health impact profile (OHIP), bleeding on probing, and plaque index. Results: A total of 581 implants were installed in 194 patients. Patients were followed for a mean period of 60.6 months (range 6–206). Eighty-nine patients received 296 low profile attachment (OT Equator), 62 patients received 124 ball attachments, and 43 patients received 107 Locator attachments. In eighty-three patients the implants were splinted with computer aided design/computer aided manufacturing (CAD/CAM) or casted bar. At the last follow-up, 10 implants failed in eight patients. Statistical significance was found for failed prostheses (P = 0.0723) and complications (P = 0.0165), with better values for splinted implants. No statistically significant differences were found in proportion of implant and prosthetic failure (P > 0.05). At a five-year follow-up, proportion of complications (P = 0.0289) and failed prostheses (P = 0.0069) were statistically higher for IOV on Locator attachments. No difference was founded in MBL at one- and two-year follow-up between different attachment systems (P > 0.05). Statistically significant improvement in all the OHIP categories was reported in all the patients, after one year of function. Conclusions: Implant overdenture showed high implant and prosthetic survival rates, low complications, high patient satisfaction, and good biological parameters in the long-term follow-up. Splinting the implants may reduce number of mechanical complications. Locator attachments showed higher number of complications. Further studies are needed to confirm these preliminary results.

scholarly journals Clinical and Radiographic Evaluation of Short Implants Placed in the Posterior Mandible: A 1-Year Pilot Split-Mouth Study

2018 ◽  
Vol 44 (4) ◽  
pp. 250-259 ◽  
Author(s):  
Mireia Haro Adánez ◽  
Miha Brezavšček ◽  
Kirstin Vach ◽  
Manrique Fonseca ◽  
Wael Att
Keyword(s):  
Survival Rate ◽  
Treatment Time ◽  
Survival Rates ◽  
Prolonged Treatment ◽  
Radiographic Evaluation ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Probing Depth ◽  
Short Implants ◽  
Bone Gain

In many cases, due to anatomical limitations, the placement of regular-length implants cannot be facilitated without the performance of advanced surgical procedures. However, these are associated with morbidity, prolonged treatment time, and costs. To overcome such disadvantages, short implants were introduced. The aim of this prospective pilot split-mouth study was to compare the clinical outcome between short implants (7 mm) and regular-length (≥10 mm) implants placed in the posterior mandible after 1 year of prosthetic delivery. Ten patients received 4 implants in the posterior mandible. Two short implants were placed in one side and 2 regular-length implants were placed contralaterally. These were restored by means of splinted screw-retained metal-ceramic crowns. Marginal bone loss (MBL) and soft-tissue parameters were compared. No implant failed. Both types of implants showed success rates of 90% and survival rates of 100%. From prosthetic delivery to 1 year post-loading a bone gain of +0.29 mm for short implants and +0.19 mm for regular-length implants was present without showing any statistically significant differences in MBL between the 2 implant types (P > .05). Bleeding on probing, clinical attachment level, probing depth, and crown-to-implant ratio did not show any statistically significant differences between the 2 implant lengths (P > .05). One case of chipping occurred in the regular-length implant group, leading to a prosthetic survival rate of 95%. Short implants showed a prosthetic survival rate of 100%. After 1 year, short implants showed comparable clinical outcomes to that of regular-length implants, making them a viable treatment option in the posterior mandible.

scholarly journals Comparison between Early Loaded Single Implants with Internal Conical Connection or Implants with Transmucosal Neck Design: A Non-Randomized Controlled Trial with 1-Year Clinical, Aesthetics, and Radiographic Evaluation

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 511
Author(s):  
Francesco Mattia Ceruso ◽  
Irene Ieria ◽  
Marco Tallarico ◽  
Silvio Mario Meloni ◽  
Aurea Immacolata Lumbau ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Clinical Results ◽  
Radiographic Evaluation ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Conical Connection ◽  
Pure Grade ◽  
One Year ◽  
The One ◽  
Implant System

To evaluate the implant and prosthetic of two implants with different surfaces and neck design. Enrolled patients received bone level, 12° conical connection implants (Nobel Parallel, Nobel Biocare; NOBEL group) with anodized surface (TiUnite) and roughness of 1.35 μm, or transmucosal implant system (Prama, Sweden and Martina; PRAMA group) with convergent collar, ZIrTi surface, and roughness 1.4–1.7 μm. Both implants were made of pure grade IV titanium, with similar diameter and length, chosen according to the dentistry department availability and patient’s request. After early prosthesis delivery, patients were filled for at least one year. Outcome measures were: implant and prosthetic survival and success rates, physiological marginal bone remodeling, periodontal parameters and pink esthetic score (PES). Results: Fifteen patients were allocated and treated in each group. At the one-year follow-up, three patients dropped out, one in the NOBEL group and two in the PRAMA group. During the entire time of investigation, all implants survived and the prostheses were successful. No statistically significant differences were found in term of marginal bone loss, periodontal parameters, and aesthetics (p > 0.05). Conclusion: With the limitations of the present study, both implant systems showed successful clinical results. Finally, many other clinical and surgical variables may influenced marginal bone levels, implant survival, and periodontal parameters. More homogenous clinical trials with larger samples are needed to confirm these preliminary conclusions.

scholarly journals Ten Years Follow-Up of Sputtered Hydroxyapatite Coated Implant in Single or Two Missing Teeth Replacement

2017 ◽  
Vol 1 (1) ◽  
pp. 1-5
Author(s):  
Minoru Sanda ◽  
Tatsuya Fujimori ◽  
Makoto Shiota ◽  
Shohei Kasugai
Keyword(s):  
Oral Health ◽  
Bone Loss ◽  
Health Impact ◽  
Long Term Results ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Oral Health Impact Profile ◽  
Crestal Bone Loss ◽  
Coated Implant ◽  
Bone Level

Sputtered hydroxyapatite coated implant has investigated as an implant with novel surface coating for dental implant. The aim of this study was to evaluate the 10 years clinical outcome regarding marginal bone loss around implants, success rate, survival rate, biological and prosthetic complication and patients subjective satisfaction for the implant with sputtered hydroxyapatite coating in human. Sixteen patients with 30 implants were employed for this study. One-piece, sputtered hydroxyapatite coated implants were placed in premolar and/or molar sites with one or two missing tooth. Ten years after implant placement, the marginal bone level change was evaluated by periapical radiograph. Incidence of peri-implant diseases and prosthetic complications were also addressed. Patient satisfaction was analyzed by Oral Health Impact Profile questionnaire. The mean marginal bone loss was 0.74 ± 1.41 mm. Survival and success rates were 96.7% and 86.7% respectively. Three implants (10.0%) in 3 patients (18.8%) were affected by peri-implantitis. Five implants (16.7%) in 4 patients (25%) had chipping of veneering material on prosthesis. One implant (3.3%) in a patient (6.3%) was fractured and removed. Mean score of Oral Health Impact Profile was 41.6 ranged from 3 to 89. Sputtered hydroxyapatite surface showed comparable marginal bone stability in 10 years result. Keywords: Clinical evaluation, Dental implants, Hydroxyapatite, Implant surfaces, Crestal bone loss, Long-term results.

The Clinical Performance of Narrow Diameter Implants Versus Regular Diameter Implants: A Meta-Analysis

2019 ◽  
Vol 45 (6) ◽  
pp. 503-508 ◽  
Author(s):  
Meng Ma ◽  
Mengxing Qi ◽  
Dongsheng Zhang ◽  
Hongchen Liu
Keyword(s):  
Fixed Effects ◽  
Meta Analysis ◽  
Survival Rates ◽  
Success Rates ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Manual Search ◽  
Meta Regression ◽  
Narrow Diameter Implants

The purpose of this study is to analyze 1- and 3-year clinical performances of narrow diameter implants (NDIs) versus regular diameter implants (RDIs). A search of electronic databases and a manual search was performed for the time period January 2000 to April 2018. A meta-regression was used to evaluate the effects of the “fixed effects” model on the implant survival rates, prosthesis success rates and marginal bone loss (MBL) with follow-up time of 1 year and 3 years. Of the 11 studies included, the overall combined 1-year implant survival rates were 98.14% for NDIs and 98.20% for RDIs. The overall combined 3-year implant survival rates were 98.71% for NDIs and 98.84% for RDIs. The corresponding values for 1-year prosthesis success rates were 96.94% for NDIs and 99.25% for RDIs. The corresponding values for 3-year prosthesis success rates were 89.25% for NDIs and 96.55% for RDIs. The meta-regression showed no significant differences between NDIs and RDIs regarding implant survival rates, prosthesis success rates, and MBL in 1-year and 3-year follow-up (P > .05). The results of this meta-analysis concluded that the implant diameter did not affect its survival rates, prosthesis success rates, and MBL in 1 and 3 years. The use of NDIs instead of bone augmentation procedures with RDIs did not affect its survival rates, prosthesis success rates, and MBL in the short-term and middle-term. However, more high-quality randomized controlled trials and long follow-up studies are needed on this topic.

Periodontal effects and survival rates of different mandibular retainers: comparison of bonding technique and wire thickness

2019 ◽  
Vol 41 (6) ◽  
pp. 591-600 ◽  
Author(s):  
Begüm Gökçe ◽  
Burçak Kaya
Keyword(s):  
Survival Rates ◽  
Study Groups ◽  
Mean Difference ◽  
Gingival Index ◽  
Success Rates ◽  
Chi Square ◽  
Bleeding On Probing ◽  
Fixed Retainers ◽  
Bonding Technique

Summary Objectives This non-randomized prospective cohort study aimed to compare the periodontal effects and success rates of mandibular canine-to-canine fixed retainers having different bonding techniques and wire thicknesses. Materials and methods Hundred patients requiring retention after orthodontic treatment were assigned to five study groups (n = 20 in each group, 61 females/39 males, median age range 16.5–18.0 years). Retention was provided by 0.0215”/direct, 0.0215”/indirect, 0.0175”/direct, 0.0175”/indirect bonded multistranded wires and removable Essix appliances. The primary and secondary outcomes were periodontal effects and success rates. The patients were examined in 1 week, 1 month, 3 months and 6 months follow-up appointments. Plaque index, gingival index, probing depth, marginal recession, bleeding on probing, failure rate per retainer wire and survival of retainer wires were analysed by Kruskal–Wallis H, Mann–Whitney U and chi-square tests. Results Significant differences were observed between the fixed retainer (FR) and Essix (E) groups in gingival index scores at 1 month [mean FR: 1.13 (95% confidence interval (CI): 0.81–1.44), mean E: 0.40 (95% CI: 0.14–0.69), mean difference: 0.73, P < 0.01], 3 months [mean FR: 0.97/1.01 (95% CI: 0.65–1.30/0.72–1.30), mean E: 0.52 (95% CI: 0.25–0.82), mean differences: 0.45/0.49, P < 0.05], 6 months [mean FR: 0.94 (95% CI: 0.62–1.27), mean E: 0.35 (95% CI: 0.15–0.58), mean difference: 0.59, P < 0.05] and in bleeding on probing scores at 1 month [mean FR: 3.05 (95% CI: 2.12–3.98), mean E: 1.15 (95% CI: 0.42–1.88), mean difference: 1.90, P < 0.01]. The survival rates of retainer wires were 85 per cent for the 0.0215” direct/indirect and 90 per cent for the 0.0175” direct/indirect groups for the 6 months follow-up. Limitations Six months follow-up period, which demonstrates only short-term outcomes. Conclusions The periodontal outcomes or survival rates of mandibular fixed retainers were not affected by bonding technique or wire thickness, whereas gingival health improved with Essix retainers but not with fixed retainers.

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