Retrospective analysis of survival rates and marginal bone loss on short implants in the mandible

2011 ◽  
Vol 23 (9) ◽  
pp. 1063-1069 ◽  
Author(s):  
Florian G. Draenert ◽  
Keyvan Sagheb ◽  
Katharina Baumgardt ◽  
Peer W. Kämmerer
Keyword(s):  
Bone Loss ◽  
Retrospective Analysis ◽  
Survival Rates ◽  
Marginal Bone Loss ◽  
Short Implants

scholarly journals Assessment of Peri-Implant Soft Tissues Conditions around Short and Ultra-Short Implant-Supported Single Crowns: A 3-Year Retrospective Study on Periodontally Healthy Patients and Patients with a History of Periodontal Disease

2020 ◽  
Vol 17 (24) ◽  
pp. 9354
Author(s):  
Giorgio Lombardo ◽  
Annarita Signoriello ◽  
Mauro Marincola ◽  
Pier Francesco Nocini
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Periodontal Disease ◽  
Soft Tissues ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Implant Complications ◽  
Short Implants ◽  
History Of ◽  
Single Crowns

The aim of this retrospective study was to evaluate implant survival, marginal bone loss and peri-implant complications in 326 short and ultra-short implants. Implants were placed in the maxillary and mandibular posterior regions of 140 patients with (PP) and without (NPP) a history of periodontal disease. Clinical and radiographic examinations were performed at 3-year recall appointments. The 8.0, 6.0 and 5.0 mm-length implants placed in PP and NPP were respectively 43.75% and 38.46%, 35.10% and 34.19%, 21.15% and 27.35%; 325 implants (one early failure) were rehabilitated with single crowns in 139 patients. Overall implant survival after 3 years of follow-up was 97.55%, 98.08% and 96.61% for PP and NPP (p = 0.46). Crestal bone level variations were not statistically different among PP and NPP; 15.41% of implants presented signs of mucositis, 14.71% and 16.67% in PP and NPP (p = 0.64). Setting the threshold for bone loss at 2 mm after 36 months, peri-implantitis prevalence was 2.2%, 1.96% and 2.63% in PP and NPP (p = 0.7). Overall implant success was 82.39%, 83.33% and 80.7% for PP and NPP (p = 0.55). Short-term outcomes suggest that short and ultra-short locking-taper implants can successfully be restored with single crowns in the posterior jaws both in PP and NPP.

scholarly journals Short Dental Implants (≤7mm) Versus Longer Implants in Augmented Bone Area: A Meta-Analysis of Randomized Controlled Trials

2018 ◽  
Vol 12 (1) ◽  
pp. 354-365 ◽  
Author(s):  
Priscila N. Uehara ◽  
Victor Haruo Matsubara ◽  
Fernando Igai ◽  
Newton Sesma ◽  
Marcio K. Mukai ◽  
...  
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Randomized Controlled Trials ◽  
Meta Analysis ◽  
Statistical Significance ◽  
Controlled Trials ◽  
Bone Area ◽  
Marginal Bone Loss ◽  
Randomized Controlled ◽  
Short Implants

Aim: The aim of this systematic review was to compare the survival rate and the marginal bone loss between short implants (≤7 mm) placed in the atrophic area and longer implants placed in the augmented bone area of posterior regions of maxillaries. Methods: Electronic search using three databases was performed up to May 2017 to identify Randomized Controlled Trials (RCT) assessing short implants survival with a minimal follow-up of 12 months post-loading. For the meta-analysis, a Risk Difference (RD) with the 95% Confidence Interval (CI) was used to pool the results of implant failure rate for each treatment group. For the marginal bone changes, Mean Differences (MD) with 95% CI were calculated. Results: Seven randomized controlled trials met the inclusion criteria, being included in qualitative and quantitative analyses. The RD between the short implant group and the control group was -0.02 (95% CI: -0.04 to 0.00), I2=0 and Chi2=3.14, indicating a favorable survival rate for short implant, but with no statistical significance (p=0.09). Discussion: For marginal bone loss, the mean difference was -0,13 (95%CI: -0.22 to -0.05), favoring the test group with statistical significance (p=0.002). The studies showed more heterogeneity for bone loss compared to survival rate. Short and longer implants showed similar survival rates after one year of loading, however the marginal bone loss around short implants was lower than in longer implants sites. Conclusion: Placement of implants ≤7 mm of length was found to be a predictable alternative for the rehabilitation of atrophic posterior regions, avoiding all the disadvantages intrinsic to bone augmentation procedures.

Influence of Crown-to-Implant Ratio on Long-Term Marginal Bone Loss Around Short Implants

2019 ◽  
Vol 34 (4) ◽  
pp. 992-998 ◽  
Author(s):  
Adolfo Di Fiore ◽  
Paolo Vigolo ◽  
Stefano Sivolella ◽  
Francesco Cavallin ◽  
Joannis Katsoulis ◽  
...  
Keyword(s):  
Bone Loss ◽  
Marginal Bone Loss ◽  
Short Implants

scholarly journals Comparative Analysis of Peri-Implant Bone Loss in Extra-Short, Short, and Conventional Implants. A 3-Year Retrospective Study

2020 ◽  
Vol 17 (24) ◽  
pp. 9278
Author(s):  
Daycelí Estévez-Pérez ◽  
Naia Bustamante-Hernández ◽  
Carlos Labaig-Rueda ◽  
María Fernanda Solá-Ruíz ◽  
José Amengual-Lorenzo ◽  
...  
Keyword(s):  
Bone Loss ◽  
Survival Rates ◽  
Marginal Bone Loss ◽  
Posterior Maxilla ◽  
Group 3 ◽  
Group 2 ◽  
Wide Neck ◽  
Implant Length ◽  
Functional Loading ◽  
Group 1

Objective: To evaluate the influence of implant length on marginal bone loss, comparing implants of 4 mm, 6 mm, and >8 mm, supporting two splinted crowns after 36-month functional loading. Materials and Methods: this retrospective clinical trial evaluated the peri-implant behavior of splinted crowns (two per case) on pairs of implants of the same length placed in the posterior maxilla (molar area). Implants were divided into three groups according to length (Group 1: extra-short 4 mm; Group 2: short 6 mm; Group 3: conventional length >8 mm). Marginal bone loss was analyzed using standardized periapical radiographs at the time of loading and 36 months later. Results: 24 patients (19 women and 5 men) were divided into three groups, eight rehabilitations per group, in the position of the maxillary first and second molars. The 48 Straumann® Standard Plus (Regular Neck (RN)/Wide Neck (WN)) implants were examined after 36 months of functional loading. Statistical analysis found no significant differences in bone loss between the three groups (p = 0.421). No implant suffered biological complications or implant loss. Long implants were associated with less radiographic bone loss. Conclusions: extra-short (4 mm); short (6 mm); and conventional length (>8 mm) implants in the posterior maxilla present similar peri-implant bone loss and 100% survival rates in rehabilitation, by means of two splinted crowns after 36 months of functional loading. Implants placed in posterior positions present better bone loss results than implants placed in anterior positions, regardless of the interproximal area where bone loss is measured. Conventional length (>8 mm) implants show better behavior in terms of distal bone loss than short (6 mm) and extra-short (4 mm) implants.

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.

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 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 One-Year Results of a Randomized Controlled Clinical Trial of Immediately Loaded Short Implants Placed in the Lower Posterior Single Molar Using a Complete Digital Workflow

2019 ◽  
Vol 9 (7) ◽  
pp. 1282 ◽  
Author(s):  
Yeon-Wha Baek ◽  
Young-Jun Lim ◽  
Jungwon Lee ◽  
Ki-Tae Koo ◽  
Myung-Joo Kim ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Soft Tissue ◽  
Bone Loss ◽  
Controlled Clinical Trial ◽  
Insertion Torque ◽  
Marginal Bone Loss ◽  
Model Free ◽  
Short Implants ◽  
Significant Difference ◽  
Computer Aided

The purpose of this randomized clinical trial is to evaluate immediately loaded single implants with varying lengths in the posterior mandible using a fully digital, model-free prosthetic-driven implant planning pathway, and to compare clinical and radiological outcomes of short and long implants. The 52 patients with the single tooth missing in the posterior molar regions of the mandible were randomly assigned to the control (CMI IS-III active® long implant; 5.0 × 10 mm) and experimental (CMI IS-III active® short implant; 5.5 × 6.6, 7.3, 8.5 mm) groups. For each patient, a single implant was placed using the computer aided surgical template and all prostheses were fabricated by means of computer-aided design/computer-aided manufacturing (CAD/CAM) system on the virtual model. The patients received provisional and definitive monolithic zirconia prostheses at 1 week and 12 weeks after implant surgery, respectively. The implant stability quotient (ISQ) measurements and periapical radiographs were taken and peri-implant parameters were evaluated at 1, 3, 4, 8, 12, 24, 36, and 48 weeks after surgery. Nineteen long implants and 27 short implants were finally used for the statistical analysis. There was no significant difference between the groups in terms of insertion torque, ISQ values (except 3 weeks), marginal bone loss, and peri-implant soft tissue parameters (p > 0.05). Both groups exhibited no stability dip during the early phase of healing. The average marginal bone loss from the baseline of implant placement for the control and experimental groups was −0.07 and 0.03 mm after 12 weeks and 0.06 and 0.05 mm after 48 weeks. All of the soft tissue parameters were within normal limits. Within the limits of the short term follow up, immediate loading of short single implants can be considered as one of predictable treatment modality in mandible with reduced bone height when primary stability can be achieved.

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