Reconstruction of Severely Atrophic Jaws Using Homografts and Simultaneous Implant Placement: A Retrospective Study

2010 ◽  
Vol 36 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Alessandro Viscioni ◽  
Leone Rigo ◽  
Maurizio Franco ◽  
Giorgio Brunelli ◽  
Anna Avantaggiato ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Clinical Outcome ◽  
Success Rate ◽  
High Survival ◽  
Marginal Bone Loss ◽  
Second Stage ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
Fresh Frozen

Abstract In the past decade, several investigators have reported that implants inserted in autografts in the same operation (ie, simultaneously inserted implants [SIIs]) have achieved excellent results. However, no report regarding SIIs placed in fresh frozen bone (FFB) is available. Thus, the authors planned a retrospective study on a series of SIIs placed in homologue FFB (but not immediately loaded) to evaluate their clinical outcome. In addition, a comparison with implants inserted in FFB in a second stage (ie, delayed inserted implants) was performed. Seventeen patients were grafted with FFB, and 48 implants were inserted in the same operation. Implant diameter and length ranged from 3.25 to 4.0 mm and from 10.0 to 15 mm, respectively. Data were compared with 302 implants inserted in FFB in a second operation during the same period in 64 patients. Analyzing SIIs, it was noted that only 3 implants were lost (ie, survival rate [SVR]  =  93.7%), and no differences were detected among the studied variables by using lost implants as a predictor of clinical outcome. On the contrary, by using crestal bone resorption around the implant's neck and specific cutoff values, it was possible to demonstrate that prosthetic restoration (ie, removable overdentures) correlated with a statistically significant lower delta insertion abutment junction (ie, reduced crestal bone loss) and thus with a better clinical outcome. By comparing SIIs with implants inserted in a second stage in FFB, a better outcome for delayed implants was demonstrated. Implants inserted simultaneously with FFB grafts had a high survival and success rate. SIIs inserted in FFB can be considered reliable devices, although a higher marginal bone loss is to be expected when fixed prosthetic restorations are used. Implants inserted in a second surgical stage have a better SVR and success rate than SIIs.

CaPO4 Blasted Implants Inserted Into Iliac Crest Homologue Frozen Grafts

2009 ◽  
Vol 35 (4) ◽  
pp. 176-180 ◽  
Author(s):  
Maurizio Franco ◽  
Leone Rigo ◽  
Alessandro Viscione ◽  
Bruno De Santis ◽  
Emanuela Tropina ◽  
...  
Keyword(s):  
Bone Loss ◽  
Clinical Outcome ◽  
Cox Regression ◽  
Clinical Success ◽  
High Survival ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Crestal Bone Loss ◽  
Short Implants ◽  
Fresh Frozen

Abstract In the last decade, some investigations have reported that the resorbable blast media surface (also named CaPO4 blasted implants [CaPO4-BIs]) has achieved excellent results. However, no report regarding CaPO4-BIs inserted into fresh frozen bone (FFB) is available. Thus, we planned a retrospective study on a series of CaPO4-BIs inserted into FFB to evaluate their clinical outcome. In the period between December 2003 and December 2006, 16 patients (10 females and 6 males, median age of 55 years) were operated on, and 76 CaPO4-BIs were inserted. The mean implant follow-up was 23 months. Implant diameter and length ranged from 3.25 to 4.5 mm and from 11.5 to 15 mm, respectively. Implants were inserted to replace 7 incisors, 11 cuspids, 31 premolars, and 27 molars. Only 1 out of 76 implants was lost (ie, survival rate [SVR] = 98.7%), and no differences were detected among the studied variables. When peri-implant crestal bone resorption was used as an indicator of clinical success (ie, success rate), it was possible to identify some variables that correlated with a better clinical outcome. Specifically, Cox regression showed that removable prosthetic restoration and longer implant length correlated with a statistically significant lower delta implant abutment junction (IAJ; ie, reduced crestal bone loss) and thus a better clinical outcome. In this study, CaPO4-BIs had high survival and success rates, similar to those reported in previous reports of 2-stage procedures in nongrafted bone. CaPO4-BIs inserted into FFB are reliable devices, although greater marginal bone loss occurs when fixed prosthetic restorations and short implants are used.

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.

scholarly journals Changing Preference of One- Vs. Two-Stage Implant Placement in Partially Edentulous Individuals: An 18-Year Retrospective Study

2020 ◽  
Vol 10 (20) ◽  
pp. 7060
Author(s):  
Liat Chaushu ◽  
Sarit Naishlos ◽  
Ofir Rosner ◽  
Eran Zenziper ◽  
Ari Glikman ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Gingival Index ◽  
Implant Survival ◽  
Two Stage ◽  
One Stage ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
The One

The purpose of the present long-term retrospective study was to assess the changing preference of one- vs. two-stage implant placement in partially edentulous individuals. The clinical outcome measures were one- vs. two-stage implant placement, implant survival, and gingival index. The radiological outcome measure was crestal bone loss. Other recorded information included gender, age, implant characteristics (brand, type, length, diameter) and implant location (maxilla/mandible). A total of 393 implants in 111 patients were included. The results revealed that there were no significant demographic differences between the one- and two-stage implant placement groups. There was a preference for one-stage surgery when wide diameter implants were used and when the number of implants per patient was ≤3. The mandible was the major implant site in the one-stage surgery group. Crestal bone loss and gingival index were similar for the two groups in both the short and long term. It can be concluded that lack of any long-term differences in implant survival, crestal bone loss and gingival health around implants after one- or two-stage implant placement promoted a significant change over 18 years, increasing to 50% the prevalence of one-stage surgery.

Management of Combined Ridge Defect and Osteotome Sinus Floor Elevation With Simultaneous Implant Placement—A 36-Month Follow-Up Case Report

2009 ◽  
Vol 35 (5) ◽  
pp. 225-231 ◽  
Author(s):  
Ali Saad Thafeed AlGhamdi
Keyword(s):  
Bone Loss ◽  
Pocket Depth ◽  
Ridge Augmentation ◽  
Second Stage ◽  
Post Surgery ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
Sinus Floor ◽  
Osteotome Sinus Floor Elevation ◽  
Contour Change

Abstract This report demonstrated the management of combined ridge defect and maxillary sinus pneumatization with simultaneous implant placement. One case with vertical and horizontal ridge deficiency and sinus pneumatization in the maxillary premolar area was indicated for ridge augmentation and sinus elevation before implant placement. Implant osteotomy was enlarged using a ridge expansion osteotome to 1 mm short of the sinus floor; sinus elevation was performed using sinus lift osteotomes; the implant was placed; bone graft and resorbable membrane were used to augment the remaining defect. The second stage was done after 6 months, followed by final restoration. The patient was reevaluated for 36 months following the final prosthesis. The surgical site healed without complication following implant placement. During the second stage, the implant was completely surrounded by bone, with bone covering the buccal aspect of the cover screw. The X-ray showed a 5 mm apical shift of the sinus floor at 6 months post surgery. At 12 months post loading, crestal bone loss to the level of the first thread was noted; no changes were observed at the sinus or surrounding teeth. Pocket depth ranged from 3–4 mm. No further bone loss or soft tissue contour change was noted at 18, 24, 30, and 36 months post loading. The combination of these three techniques with simultaneous implant placement as described in this report seems to be successful. Further research is needed to evaluate whether the combination of these techniques with simultaneous implant placement offers similar results when compared with the stage approach.

scholarly journals Implant Placement Following Crestal Sinus Lift with Sequential Drills and Osteotomes: Five Years after Final Loading Results from a Retrospective Study

2021 ◽  
Vol 12 (1) ◽  
pp. 10
Author(s):  
Aurea Immacolata Lumbau ◽  
Silvio Mario Meloni ◽  
Marco Tallarico ◽  
Luca Melis ◽  
Giovanni Spano ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Alveolar Bone ◽  
Sinus Lift ◽  
Combined Approach ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Implant Placement ◽  
Prosthetic Complications

The aim of this retrospective study was to clinically evaluate the five-year outcomes of implants placed following a combined approach to the sinus, consisting of sequential drills and osteotomes. Medical records of patients with implants placed in combination with crestal sinus lift using sequential drills and osteotomes, with a residual alveolar bone crest between 4 to 8 mm, and a follow-up of at least five years after final loading, were evaluated. Outcomes were implant and prosthetic survival and success rates, any complication, and marginal bone loss. Data from 96 patients (53 women and 43 men; mean age 54.7 years; range 23–79 years) were collected. A total of 105 single implants were analyzed. After five years of function, two implants were lost and two prostheses failed. No major biological or prosthetic complications occurred. At the five-year examination, the marginal bone loss was 1.24 ± 0.28 mm. Within the limitations of this retrospective study it can be concluded that implants placed following a combined approach to the sinus consisting of sequential drills and osteotomes seem to be a viable option for the treatment of posterior atrophic edentulous maxilla.

scholarly journals Bone Loss in Implants Placed at Subcrestal and Crestal Level: A Systematic Review and Meta-Analysis

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 154 ◽  
Author(s):  
Natalia Palacios-Garzón ◽  
Eugenio Velasco-Ortega ◽  
José López-López
Keyword(s):  
Systematic Review ◽  
Bone Loss ◽  
Randomized Control Trial ◽  
Meta Analysis ◽  
High Survival ◽  
Random Effects Model ◽  
High Survival Rate ◽  
Marginal Bone Loss ◽  
Crestal Bone Loss ◽  
Randomized Control

Background: To assess differences in marginal bone loss in implants placed at subcrestal versus crestal level. Methods: An electronic and a manual research of articles written in English from Jaunary 2010 to January 2018 was performed by two independent reviewers. Clinical trials comparing bone loss for implants placed at crestal and subcrestal level were included. Pooled estimates from comparable studies were analyzed using a continuous random-effects model meta-analysis with the objective of assessing differences in crestal bone loss between the two vertical positions. Results: 16 studies were included; 10 studies did not encounter statistically significant differences between the two groups with respect to bone loss. Three articles found greater bone loss in subcrestal implants; while 3 found more bone loss in crestal implants. A meta-analysis for randomized control trial (RCT) studies reported an average and non-statistically different crestal bone loss of 0.028 mm. Conclusions: A high survival rate and a comparable bone loss was obtained both for crestal and subcrestal implants’ placement. Quantitative analysis considering a homogenous sample confirms that both vertical positions are equally valid in terms of perimplant bone loss. However, with respect to soft tissue; in presence of a thin tissue; a subcrestal placement of the implant should be preferred as it may reduce the probability for the implant to become exposed in the future and thus avoid the risk of suffering from peri-implant pathologies.

EVALUATE THE EFFECTIVENESS OF IMMEDIATE LOADING IMPLANTS WITH OVERDENTURE USING ANKYLOS SYNCONE TELESCOPIC COPINGS FOR THE TREATMENT OF EDENTULOUS MANDIBLES

2018 ◽  
Vol 8 (4) ◽  
pp. 34-41
Author(s):  
Chanh Le Trung ◽  
Toai Nguyen
Keyword(s):  
Bone Loss ◽  
Success Rate ◽  
Primary Response ◽  
Ho Chi Minh City ◽  
Immediate Loading ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
Mandibular Overdenture ◽  
Loss Level

Objective: Implant – supported overdentures have been an effective method for the treatment of edentulous mandibles. However, the loading time after implant placement is still controversial. The purpose of the present study was to evaluate the effect of immediate loading implantswith mandibular overdenture using Ankylos Syncone telescopic copings for the treatment of edentulous. Materials and methods: This study was performed on 22 edentulous mandibular patients visiting Department of High Technique, National Hospital of Odonto – Stomatology at Ho Chi Minh city. Each patient received four interforaminal implants. Ankylos Syncone copings systems was used to connect prostheses and implant, which then received immediate loading. The primary response variables were success and failure rate of implants and prostheses. The peri-implant tissue condition and peri-implant crestal bone loss level on radiography were evaluated at six months (T6) and twelve months (T12) postsurgery. Results: There is no peri-implantitis at the follow-up points. The osseointegration rate after 12 months was 100%, while the success rate and survival rate of protheses were 91% and 100% respectively. The peri-implant crestal bone loss on radiography images from baseline (T0) to T6 was 0.07 (±0.22) mm and from T0 to T12 was 0.12 (±0.29) mm. Conclusion: Mandibular rehabilitation usingimmediate loading implant mandibular overdenture with Ankylos Syncone telescopic has shown a high success rate and patient sastisfation over time. Key words: immediate loading, overdenture, edentulous mandibles telescopic copings

Residual Roots as an Anatomical Guide for Implant Placement: Case Series With Two-Year Follow-up

2016 ◽  
Vol 42 (3) ◽  
pp. 285-288
Author(s):  
Lanka Mahesh ◽  
Gregori M. Kurtzman ◽  
David Schwartz ◽  
Sagrika Shukla
Keyword(s):  
Bone Loss ◽  
Success Rate ◽  
Case Series ◽  
Root Structure ◽  
Implant Positioning ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
Different Types

As placement of implants into immediate sites involves management of the remaining root structure, these residual roots may be used as a guide for the development of osteotomy. This aids in implant positioning and prevents drill slippage into the residual root spaces during osteotomy drilling. Following completion of the osteotomy, the remaining root structure is extracted prior to implant placement into the site. The aim of this study is to assess the success rate of implants when the residual roots were used as anatomical guides for osteotomy. One hundred implants were placed in 57 patients, and 4 different types of implants were used: 47 Bioner TOP DM implants, 20 Nobel Biocare Replace implants, 25 Biohorizons Tapered Internal implants (Birmingham, Ala), and 8 Alpha-Bio Tec SPI Implants. The implants were placed into 57 patients. Osteotomies were placed through intact residual roots, which acted as anatomical guides for implant surgical placement. Patients had a follow-up period of 2 years, and in that time none reported discomfort after implant placement. There were no signs of peri-implantitis observed in any of the patients. Of all the implants placed, the Bioner TOP DM implant showed the least amount of crestal bone loss. Placing implants through residual roots as an anatomical guide is a useful technique that shows good results over a 2-year follow-up period.

Survival of Short and Ultra-Short Locking-Taper Implants Supporting Single Crowns in the Posterior Mandible: A 3-Year Retrospective Study

2020 ◽  
Vol 46 (4) ◽  
pp. 396-406 ◽  
Author(s):  
Giorgio Lombardo ◽  
Annarita Signoriello ◽  
Miguel Simancas-Pallares ◽  
Mauro Marincola ◽  
Pier Francesco Nocini
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Contact Point ◽  
Implant Survival ◽  
Point Position ◽  
Crestal Bone Loss ◽  
Short Implants ◽  
Single Crown ◽  
Bone To Implant Contact ◽  
Single Crowns

The purpose of this retrospective study was to determine survival and peri-implant marginal bone loss of short and ultra-short implants placed in the posterior mandible. A total of 98 patients received 201 locking-taper implants between January 2014 and January 2015. Implants were placed with a 2-stage approach and restored with single crowns. Clinical and radiographic examinations were performed at 3-year recall appointments. At that time, the proportion of implant survival by length, and variations of crestal bone levels (mean crestal bone loss and mean apical shift of the “first bone-to-implant contact point” position) were assessed. Significance level was set at 0.05. The total number of implants examined 36 months after loading included: 71 implants, 8.0 mm in length; 82 implants, 6.0 mm in length; and 48 implants, 5.0 mm in length. Five implants failed. The overall proportion of survival was 97.51%, with 98.59% for the 8.0-mm implants, 97.56% for the 6.0-mm implants, and 95.83% for the 5.0-mm implants. No statistically significant differences were found among the groups regarding implant survival (P = .73), mean crestal bone loss (P = .31), or mean apical shift of the “first bone-to-implant contact point” position (P = .36). Single-crown short and ultra-short implants may offer predictable outcomes in the atrophic posterior mandibular regions, though further investigations with longer follow-up evaluations are necessary to validate our results.

Sign in / Sign up

Export Citation Format

Share Document