scholarly journals Implants Survival Rate in Regenerated Sites with Innovative Graft Biomaterials: 1 Year Follow-Up

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5292
Author(s):  
Elio Minetti ◽  
Martin Celko ◽  
Marcello Contessi ◽  
Fabrizio Carini ◽  
Ugo Gambardella ◽  
...  
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Dental Implants ◽  
Dental Implant ◽  
Graft Material ◽  
Implant Survival ◽  
Socket Preservation ◽  
Implant Survival Rate ◽  
Bone Biopsies

In thirteen different dental clinics in Singapore, Spain, Czech Republic and Italy, 504 patients were selected, and 483 dental implants were placed in maxillary sites after alveolar socket preservation (ASP) procedures with an autologous demineralized tooth extracted as graft material from an innovative Tooth Transformer device was obtained. All procedures used were reported in n°638 Ethical Committee surgical protocol of University of Chieti and approved. After 4 months, at dental implant placing, bone biopsies were performed to evaluate the histologic outcomes, and 12 months after implant loading, global implant survival rate, failure percentage and peri-implant bone loss were detected. After ASP, only 27 post-operative complications were observed and after 4 months, bone biopsy histomorphometric analysis showed a high percentage of bone volume (BV) 43.58 (±12.09), and vital new bone (NB) 32.38 (±17.15) with an absence of inflammation or necrosis areas. Twelve months after loading, only 10 dental implants failed (2.3%), with a 98.2% overall implant survival rate, nine cases showed mucositis (1.8%) and eight showed peri-implantitis (1.6%). At mesial sites, 0.43 mm (±0.83) of bone loss around the implants was detected and 0.23 mm (±0.38) at the distal sites with an average value of 0.37 mm (±0.68) (p > 0.568). Several studies with a longer follow-up will be necessary to confirm the preliminary data observed. However, clinical results seem to suggest that the post-extraction socket preservation procedure using innovative demineralized autologous tooth-derived biomaterial may be a predictable procedure to produce new vital bone able to support dental implant rehabilitation of maxilla edentulous sites.

scholarly journals Clinical Comparation of Extra-Short (4 mm) and Long (>8 mm) Dental Implants Placed in Mandibular Bone: A Systematic Review and Metanalysis

Healthcare ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 315
Author(s):  
Vittorio Moraschini ◽  
Carlos Fernando de Almeida Barros Mourão ◽  
Pietro Montemezzi ◽  
Ingrid Chaves Cavalcante Kischinhevsky ◽  
Daniel Costa Ferreira de Almeida ◽  
...  
Keyword(s):  
Systematic Review ◽  
Survival Rate ◽  
Bone Loss ◽  
Dental Implants ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Implant Survival Rate ◽  
Short Implants ◽  
Prosthetic Complications

This systematic review (SR) aimed to evaluate implant survival rate, marginal bone loss (MBL), and biological/prosthetic complications of extra-short 4 mm dental implants. An electronic search without language or date restrictions was performed in five databases and in gray literature for articles published until August 2020. Prospective cohort studies and randomized clinical trials (RCTs) that evaluated the clinical performance of extra-short 4 mm dental implants were included. Studies were independently assessed for risk of bias using the Cochrane Collaboration’s tool. The protocol of this SR was registered in the PROSPERO database under number CRD42019139709. Four studies were included in the present SR. There was no significant difference in implant survival rate (p = 0.75) between extra-short 4 mm and long implants. After 12 months of function, the extra-short implants had a significantly (p = 0.003) lower marginal bone loss (MBL) rate when compared to long implants. Extra-short implants had a lower number of biological and prosthetic complications when compared to long implants. After 12 months of follow-up, extra-short 4 mm dental implants placed in the mandible exhibit satisfactory clinical outcomes concerning implant survival rate and MBL when compared to longer implants, with a low number of biological and prosthetic complications. A higher number of RCTs with longer follow-up is necessary for the future.

scholarly journals Short (6 mm) and Regular Dental Implants in the Posterior Maxilla–7-Years Follow-up Study

2021 ◽  
Vol 10 (5) ◽  
pp. 940
Author(s):  
Jakub Hadzik ◽  
Paweł Kubasiewicz-Ross ◽  
Izabela Nawrot-Hadzik ◽  
Tomasz Gedrange ◽  
Artur Pitułaj ◽  
...  
Keyword(s):  
Survival Rate ◽  
Dental Implants ◽  
Clinical Results ◽  
Implant Survival ◽  
Implant Survival Rate ◽  
Short Implants ◽  
Posterior Maxilla ◽  
Patient Reported ◽  
Bone Level

Short 6 mm dental implants are considered as an alternative to the maxillary sinus elevation and bone augmentation procedure where there is a reduced alveolar ridge height. The aim of this study was to compare the implant survival rate between short dental implants (6 mm) and regular length implants (11–13 mm) when placed in combination with bone grafting and loaded with a single non splinted crown, seven years after placing the implant. It was conducted as a controlled clinical study of 30 patients with partial edentulism in the posterior maxilla. The protocol included radiological and clinical evaluation of the C/I ratio (length of the superstructure divided by the length of the implant crestal part), marginal bone level (MBL), ultrasonography measurement of soft tissue surrounding implant (STT), patient-reported outcomes, and biological and technical complications. A total number of 28 implants (93%) remained integrated during follow-up period. MBL of 0.50 and 0.52 mm was observed for short implants and regular implants, respectively. MBL was checked for correlation with STT, and a negative correlation was found between MBL: STT. Our study has demonstrated a significantly lower implant survival rate for short implants compared to regular implants (87% compared to 100%). Despite the loss of several implants, good clinical results were achieved in the remaining implants in both groups. It is, therefore, worth considering short implants as an alternative to regular implants with a sinus lift surgery.

Survival rate and cervical bone loss of implants placed in non vascularized iliac graft after segmental mandibulectomy

2020 ◽  
Author(s):  
Abbas Karimi ◽  
Khatere Arian Rad ◽  
Hassan Mir Mohammad Sadeghi ◽  
Mahboube Hasheminasab
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Dental Implant ◽  
Implant Survival ◽  
Cumulative Survival ◽  
Implant Placement ◽  
Mandibular Defect ◽  
Segmental Mandibulectomy ◽  
Loss Level

Objective: The purpose of this study was to evaluate the survival rate and the amount of periimplant bone loss in implants placed in free iliac graft following segmental mandible resection. Materials and Methods: Over a 5-year period between 2010 and 2015, nine patients with odontogenic tumors who were candidate for segmental mandible resection were enrolled in this study. Resection defect was immediately reconstructed with non-vascularized iliac graft and 4-6 months later 36 implants of 5 different brands were inserted in grafted mandibles. Information regarding implant survival, peri implant bone loss or inflammation for a mean follow up period of 33 months was obtained. Results: One implant was failed out of 36 implants and the cumulative survival rate of implants was 97.2% in this follow up period. There was no sign of peri implant inflammation or gingival recession or BOP in any patients. The cervical bone loss level varied between 0.6 to 12mm (the length of failed implant) with the average of 0.96 mm. The bone loss level of survived implants varied between 0.6to 1.72mm with average of 0.64mm. Conclusion: This study demonstrated that reconstruction of segmental mandibular defect with non vascularized iliac graft followed by dental implant placement is an effective and predictable method to restore oral function.

scholarly journals The Long-Term Effect of Smoking on 10 Years’ Survival and Success of Dental Implants: A Prospective Analysis of 453 Implants in a Non-University Setting

2020 ◽  
Vol 9 (4) ◽  
pp. 1056
Author(s):  
Simon Windael ◽  
Stijn Vervaeke ◽  
Stefanie De Buyser ◽  
Hugo De Bruyn ◽  
Bruno Collaert
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Dental Implants ◽  
Rank Test ◽  
Implant Survival ◽  
Patient Level ◽  
Significant Difference ◽  
Single Inclusion ◽  
Modified Surface

Background: The purpose of this study was to compare the survival and peri-implant bone loss of implants with a fluoride-modified surface in smokers and non-smokers. Material and Methods: All patients referred for implant treatment between November 2004 and 2007 were scrutinized. All implants were placed by the same surgeon (B.C.). The single inclusion criterion was a follow-up time of at least 10 years. Implant survival, health, and bone loss were evaluated by an external calibrated examiner (S.W.) during recall visits. Radiographs taken at recall visits were compared with the post-surgical ones. Implant success was based on two arbitrarily chosen success criteria for bone loss (≤1 mm and ≤2 mm bone loss after 10 years). Implant survival in smokers and non-smokers was compared using the log-rank test. Both non-parametric tests and fixed model analysis were used to assess bone loss in both groups. Results: A total of 453 implants in 121 patients were included for survival analysis, and 397 implants in 121 patients were included for peri-implant bone-loss analysis. After a mean follow-up time of 11.38 years (SD 0.78; range 10.00–13.65), 33 implants out of 453 initially placed had failed in 21 patients, giving an overall survival rate of 92.7% and 82.6% on the implant and patient level, respectively. Cumulative 10 years’ survival rate was 81% on the patient level and 91% on the implant level. The hazard of implant loss in the maxilla was 5.64 times higher in smokers compared to non-smokers (p = 0.003). The hazard of implant loss for implants of non-smokers was 2.92 times higher in the mandible compared to the maxilla (p = 0.01). The overall mean bone loss was 0.97 mm (SD 1.79, range 0–17) at the implant level and 0.90 mm (SD 1.39, range 0–7.85) at the patient level. Smokers lost significantly more bone compared to non-smokers in the maxilla (p = 0.024) but not in the mandible. Only the maxilla showed a significant difference in the probability of implant success between smokers and non-smokers (≤1 mm criterion p = 0.003, ≤2 mm criterion p = 0.007). Taking jaw into account, implants in smokers experienced a 2.6 higher risk of developing peri-implantitis compared to non-smokers (p = 0.053). Conclusion: Dental implants with a fluoride-modified surface provided a high 10 years’ survival with limited bone loss. Smokers were, however, more prone to peri-implant bone loss and experienced a higher rate of implant failure, especially in the upper jaw. The overall bone loss over time was significantly higher in smoking patients, which might be suggestive for a higher peri-implantitis risk. Hence, smoking cessation should be advised and maintained after implant placement from the perspective of peri-implant disease prevention.

scholarly journals Oral Rehabilitation of Oncology Patients With Microvascular Free Flaps With a Follow-Up of 2 to 6 Years

2021 ◽  
Author(s):  
Funda Goker ◽  
Alessandro Baj ◽  
Alessandro Remigio Bolzoni ◽  
Carlo Maiorana ◽  
Giada Beltramini ◽  
...  
Keyword(s):  
Survival Rate ◽  
Dental Implants ◽  
Free Flaps ◽  
Secondary Outcome ◽  
Implant Survival ◽  
Oral Rehabilitation ◽  
Implant Survival Rate ◽  
Maxillofacial Reconstruction ◽  
Microvascular Free Flaps

Abstract BACKGROUND: Reconstruction with free flaps after radical cancer surgery in terms of function and esthetics can be quite demanding. The aim of this study was to evaluate retrospectively oral rehabilitation with microvascular free flaps and dental implants for maxillofacial reconstruction in oncologic patients with a minimum follow-up of 2 years after implant insertions.METHODS: The study consisted of 17 patients diagnosed with either squamous cell carcinoma, fusocellular carcinoma, or mucoepidermoid carcinoma. The reconstruction of the maxillofacial defects was done with microvascular free flaps (free fibular flap, antero-lateral thigh flap, or radial forearm flap). Implants were inserted on the average 30.2±15.5 months after reconstructive operations. A total of 74 implants were inserted. Mean follow up after maxillo-facial surgery was 6.16 years (mean 73.93±14.48 months). Mean follow up after implant insertions was 3.61 years (mean 43.50±12.96). Primary outcome was implant survival. Secondary outcome was evaluation of post-surgical complications.RESULTS: There were surgical revisions in seven patients after reconstructive surgery with flaps, mainly due to tumor relapse. Complications were seen in 11 patients. 1 implant was lost in a female patient 15 months after placement. Overall implant survival rate was 97.5%. No relations were found between implant survival rate and gender, type of tumor, type of microvascular free flap, radiation therapy, chemotherapy, and prosthesis type.CONCLUSION: According to the results of this study, oral rehabilitation with dental implants inserted in free flaps for maxillofacial reconstruction after ablative oncologic surgery can be considered as a safe treatment modality with successful outcomes.

scholarly journals Survival Rate of 1008 Short Dental Implants with 21 Months of Average Follow-Up: A Retrospective Study

2020 ◽  
Vol 9 (12) ◽  
pp. 3943
Author(s):  
João Caramês ◽  
Ana Catarina Pinto ◽  
Gonçalo Caramês ◽  
Helena Francisco ◽  
Joana Fialho ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Dental Implants ◽  
Cox Regression ◽  
Survival Rates ◽  
High Survival ◽  
Implant Survival ◽  
Posterior Maxilla ◽  
Clinical Records

This retrospective study evaluated the survival rate of short, sandblasted acid-etched surfaced implants with 6 and 8 mm lengths with at least 120 days of follow-up. Data concerning patient, implant and surgery characteristics were retrieved from clinical records. Sandblasted and acid-etched (SLA)-surfaced tissue-level 6 mm (TL6) or 8 mm (TL8) implants or bone-level tapered 8 mm (BLT8) implants were used. Absolute and relative frequency distributions were calculated for qualitative variables and mean values and standard deviations for quantitative variables. A Cox regression model was performed to verify whether type, length and/or width influence the implant survival. The cumulative implant survival rate was assessed by time-to-event analyses (Kaplan–Meier estimator). In all, 513 patients with a mean age of 58.00 ± 12.44 years received 1008 dental implants with a mean follow-up of 21.57 ± 10.77 months. Most implants (78.17%) presented a 4.1 mm diameter, and the most frequent indication was a partially edentulous arch (44.15%). The most frequent locations were the posterior mandible (53.97%) and the posterior maxilla (31.55%). No significant differences were found in survival rates between groups of type, length and width of implant with the cumulative rate being 97.7% ± 0.5%. Within the limitations of this study, the evaluated short implants are a predictable option with high survival rates during the follow-up without statistical differences between the appraised types, lengths and widths.

scholarly journals Clinical outcomes of dental implants placed in the same region where previous implants failed due to peri-implantitis: a retrospective study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Eduardo Anitua ◽  
Adriana Montalvillo ◽  
Asier Eguia ◽  
Mohammad Hamdan Alkhraisat
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Bone Loss ◽  
Clinical Outcomes ◽  
Dental Implants ◽  
Demographic Data ◽  
High Survival ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Bone Level

Abstract Purpose There is paucity in the studies that assess dental implants replacing failed dental implants due to peri-implantitis. This study aims to evaluate the clinical outcomes of these implants in terms of implant survival and marginal bone loss. Methods Patients in this retrospective study were selected if having one or more implants removed due to peri-implantitis and the placement and loading of dental implants in the same region from April 2010 to December 2019. Information was collected about the patient's demographic data, implant dimensions, surgical and prosthetic variables. Changes in peri-implant bone level, cumulative implant survival rate and technical complications were assessed. Results Three hundred and eighty one dental implants in 146 patients that were placed in the same position or one-tooth position mesially/distally to the site of explantation were included. The patients' mean age was 63 ± 10 years. Ninety seven patients were females and 49 were males. After a mean follow-up of 34 ± 17 months, two implants failed. The cumulative survival rate was 99%. The marginal bone loss was −0.1 ± 0.6. Immediate or delay replacement of the failed implant did not affect implant survival or marginal bone stability. All the prostheses were screw-retained and presented the following complications: ceramic chipping (3 events), resin tooth fracture (1 event) and prosthetic screw loosening (1 event). Conclusions Dental implants replacing failed implants due to peri-implantitis would be an option in the management of peri-implantitis. They showed high survival rate and marginal bone stability.

Implant Survival Rate and Marginal Bone Loss of 6-mm Short Implants: A 2-Year Clinical Report

2014 ◽  
Vol 29 (6) ◽  
pp. 1425-1428 ◽  
Author(s):  
Emanuel Bratu ◽  
Hsun-Liang Chan ◽  
Sorin Mihali ◽  
Olimpiu Karancsi ◽  
Dana Bratu ◽  
...  
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Clinical Report ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Implant Survival Rate ◽  
Short Implants

scholarly journals Immediate and early loading of hydrothermally treated, hydroxyapatite-coated dental implants: a 7-year prospective randomized clinical study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Afarin Arghami ◽  
David Simmons ◽  
Jeanne St. Germain ◽  
Pooja Maney
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Age Distribution ◽  
Implant Survival ◽  
Randomized Clinical Study ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
Plasma Sprayed

Abstract Background Existing research on marginal bone stability around hydroxyapatite (HA)-coated implants often lacks adequate long-term follow-up. The purpose of this randomized prospective study was to evaluate the 7-year outcome of patients with immediate and early loaded single-tooth restorations supported by implants with plasma-sprayed, partially HA-coated surfaces. Forty-two patients in need of 50 single implants were treated in in the Postgraduate Periodontics Clinic of Louisiana State University School of Dentistry. Implants were randomly divided into 2 groups: Group A was immediately loaded, and Group B was early loaded. Continuous follow-up with periodic maintenance care and radiographic evaluations was performed. The primary outcome of interest was implant survival, characterized using the Kaplan–Meier method. Secondary study outcome consisted of peri-implant crestal bone level changes. Data on age, sex, bone quality, implant location, length and diameter, and prior augmentation of the site were collected. Multiple regression analyses were conducted to determine whether the independent variables were associated with bone loss. Results One implant failed to maintain stability and was removed at 3 weeks. Thirty-four patients (14 males, 20 females with a total of 42 implants) completed the 7-year follow-up visit. Average age of evaluable patients was 52 in Group A and 55 in Group B. No significant difference was observed regarding sex and age distribution between the 2 groups. No significant difference was detected in the distribution of implant locations, types of bone, implant length, implant diameter, and augmentation status of the bone between the 2 groups. After 7 years of functioning for the 42 implants examined, implant survival rate was 100% for Group A and 95.5% for Group B. The results from this study of 50 implants showed that HA-coated Zimmer Tapered Screw-Vent Implants were clinically effective, with an overall cumulative 7-year survival rate of 98.0%. When comparing radiographic bone levels between 2-year and 7-year follow-ups, no significant differences in bone loss were found between Group A and Group B. Conclusions After 7 years in function, implants partially coated with plasma-sprayed and hydrothermally treated HA were clinically predictable when restored in occlusion immediately after or 3 weeks after implant placement.

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