scholarly journals Does the Laser-Microtextured Short Implant Collar Design Reduce Marginal Bone Loss in Comparison with a Machined Collar?

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
B. Alper Gultekin ◽  
Ali Sirali ◽  
Pinar Gultekin ◽  
Serdar Yalcin ◽  
Eitan Mijiritsky
Keyword(s):  
Bone Resorption ◽  
Bone Loss ◽  
Marginal Bone Loss ◽  
Posterior Teeth ◽  
Cumulative Survival ◽  
Probing Depth ◽  
Before And After ◽  
Retrospective Study Design ◽  
Short Implant

Purpose. To compare marginal bone loss between subgingivally placed short-collar implants with machined collars and those with machined and laser-microtextured collars.Materials and Methods. The investigators used a retrospective study design and included patients who needed missing posterior teeth replaced with implants. Short-collar implants with identical geometries were divided into two groups: an M group, machined collar; and an L group, machined and laser-microtextured collar. Implants were evaluated according to marginal bone loss, implant success, and probing depth (PD) at 3 years of follow-up.Results. Sixty-two patients received 103 implants (56 in the M group and 47 in the L group). The cumulative survival rate was 100%. All implants showed clinically acceptable marginal bone loss, although bone resorption was lower in the L group (0.49 mm) than in the M group (1.38 mm) at 3 years (p<0.01). A significantly shallower PD was found for the implants in the L group during follow-up (p<0.01).Conclusions. Our results suggest predictable outcomes with regard to bone loss for both groups; however, bone resorption was less in the L group than in the M group before and after loading. The laser-microtextured collar implant may provide a shallower PD than the machined collar implant.

scholarly journals Crown-to-implant ratio of short locking-taper implants placed in posterior areas of the maxilla: a retrospective study 2 years after loading

2017 ◽  
pp. 89-94
Author(s):  
Lombardo Giorgio ◽  
Pighi Jacopo ◽  
Corrocher Giovanni ◽  
Simancas Pallares Miguel Angel ◽  
Marincola Mauro ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Clinical Study ◽  
Bone Loss ◽  
Ratio Analysis ◽  
Marginal Bone Loss ◽  
Cumulative Survival ◽  
Retrospective Clinical Study ◽  
The Mean ◽  
Short Implant

Introduction: The purpose was to study any relationship between crown-to-implant ratio and peri-implant bone loss of short, plateau-design, locking taper implants in posterior maxillary areas. Methods: This retrospective clinical study was conducted between May 2013 and September 2013. The sample was composed of patients who had received at least one short implant(5-to-8-mm-long) between January 2009 and December 2011. The outcome variables were implant failure and peri-implant bone loss in relation to crown-to-implant ratio. Analysis of variance (ANOVA) was used to check out correlations between crown-to-implant ratio and peri-implant bone loss. Results: Thirty-six subject who received 79 locking-taper implants were followed for an average of 24 months. Four implants failed, giving a cumulative survival rate (CSR) of 94.9%. The mean crown-to-implant ratio was 2.01. The peri-implant bone loss between prosthetic loading and last recall was 0.21 mm. No statistically significant relationship was observed between increasing crown-implant ratios and marginal bone loss (P = .93). Conclusion: The crown-to-implant ratio, although high, was not associated to increased bone loss. However further studies with longer follow-up are needed to confirm our data.

scholarly journals Unconventional Implant Strategy for Patients With Limited Interocclusal Space in the Posterior Region: A Clinical Cohort Study With 1-year Follow-Up

2021 ◽  
Author(s):  
Xun Xia ◽  
Zhen-Yu Wei ◽  
Jiang-Qin Huang ◽  
Chang-Qi Hu ◽  
Shui-Gen Guo ◽  
...  
Keyword(s):  
Bone Loss ◽  
Success Rate ◽  
Soft Tissues ◽  
Posterior Region ◽  
Marginal Bone Loss ◽  
Probing Depth ◽  
Tissue Changes ◽  
Implant Restoration ◽  
Soft Tissue Changes

Abstract BackgroundThis study aims to evaluate the clinical outcomes of a new implant restoration strategy for patients with limited interocclusal space in the posterior region.Materials and MethodsA total of 37 patients (19 females and 18 males) were enrolled in this study and received 62 implants. A locking taper implant (Bicon) was used for the first stage procedure, which was placed >2mm under the bone. An extraoral cementation technique was used to cement the crown and abutment. The survival and success rate of the implant restorations were evaluated using the plaque index, modified bleeding index, probing depth, marginal bone loss, and the patient's subjective satisfaction. ResultsThe soft tissues around the implant were healthy and did not show any indications of peri-implantitis. The success rate of the new implant restorations was >96% at the 1-year follow-up. The patients presented satisfactory outcomes at the 1-year follow-up. The marginal bone loss and soft tissue changes were not significantly different at different depths of placement (p>0.05).ConclusionsAccording to the results, the use of a locking taper implant and adoption of appropriate prosthetic strategies might be an effective procedure for the prosthetic rehabilitation of patients with limited interocclusal space and reduced occlusal vertical dimensions.

scholarly journals Dental Implants with Different Neck Design: A Prospective Clinical Comparative Study with 2-Year Follow-Up

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1029 ◽  
Author(s):  
Pietro Montemezzi ◽  
Francesco Ferrini ◽  
Giuseppe Pantaleo ◽  
Enrico Gherlone ◽  
Paolo Capparè
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Dental Implants ◽  
Survival Rates ◽  
Marginal Bone Loss ◽  
Probing Depth ◽  
Group A ◽  
Group B ◽  
Wide Neck

The present study was conducted to investigate whether a different implant neck design could affect survival rate and peri-implant tissue health in a cohort of disease-free partially edentulous patients in the molar–premolar region. The investigation was conducted on 122 dental implants inserted in 97 patients divided into two groups: Group A (rough wide-neck implants) vs. Group B (rough reduced-neck implants). All patients were monitored through clinical and radiological checkups. Survival rate, probing depth, and marginal bone loss were assessed at 12- and 24-month follow-ups. Patients assigned to Group A received 59 implants, while patients assigned to Group B 63. Dental implants were placed by following a delayed loading protocol, and cemented metal–ceramic crowns were delivered to the patients. The survival rates for both Group A and B were acceptable and similar at the two-year follow-up (96.61% vs. 95.82%). Probing depth and marginal bone loss tended to increase over time (follow-up: t1 = 12 vs. t2 = 24 months) in both groups of patients. Probing depth (p = 0.015) and bone loss (p = 0.001) were significantly lower in Group A (3.01 vs. 3.23 mm and 0.92 vs. 1.06 mm; Group A vs. Group B). Within the limitations of the present study, patients with rough wide-neck implants showed less marginal bone loss and minor probing depth, as compared to rough reduced-neck implants placed in the molar–premolar region. These results might be further replicated through longer-term trials, as well as comparisons between more collar configurations (e.g., straight vs. reduced vs. wide collars).

scholarly journals Transcrestal Sinus Lift Procedure Approaching Atrophic Maxillary Ridge: A 60-Month Clinical and Radiological Follow-Up Evaluation

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
G. Lo Giudice ◽  
G. Iannello ◽  
A. Terranova ◽  
R. Lo Giudice ◽  
G. Pantaleo ◽  
...  
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Acute Infection ◽  
Survival Rates ◽  
Clinical Results ◽  
Marginal Bone Loss ◽  
Before And After ◽  
Clinical And Radiological Outcome ◽  
Sinus Lifting

Aim.The aim of this study was to assess the success and the survival rate of dental implants placed in augmented bone after sinus lifting procedures.Material and Methods.31 patients were mainly enrolled for a residual upper jaw crest thickness of 3 mm. CBCT scans were performed before and after the augmentation technique and at the follow-up appointments, at 3, 6, 12, 24, and up to 60 months. The follow-up examination included cumulative survival rate of implants, peri-implant marginal bone loss, and the height of sinus floor augmentation.Results.This retrospective study on 31 patients and 45 implants later inserted in a less than 3 mm crest showed excellent survival rates (99.5%), one implant was lost before loading due to an acute infection after 24 days, and two implants did not osteointegrate and were removed after 3 months. The radiological evaluation showed an average bone loss of 0.25 mm (±0.78 mm) at the first follow-up appointment (3 months) up to 0.30 mm (±1.28 mm) after 60-month follow-up.Conclusion.In this study it was reported how even in less than 3 mm thick crest a transcrestal technique can predictably be used with a long-term clinical and radiological outcome, giving patients excellent stability of the grafted material and healthy clinical results.

scholarly journals Single tooth restoration in the maxillary esthetic zone using a one-piece ceramic implant with 1 year of follow-up: case series

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Miren Vilor-Fernández ◽  
Ana-María García-De-La-Fuente ◽  
Xabier Marichalar-Mendia ◽  
Ruth Estefanía-Fresco ◽  
Luis-Antonio Aguirre-Zorzano
Keyword(s):  
Case Series ◽  
Biological Properties ◽  
Titanium Implants ◽  
Plaque Index ◽  
Marginal Bone Loss ◽  
Bleeding On Probing ◽  
Probing Depth ◽  
Zirconia Implants ◽  
Ceramic Implant

Abstract Background Oral implants have helped clinicians to improve the quality of life for many patients. The material of choice for dental implants currently remains titanium type IV, whose mechanical and biological properties have been proven throughout the history of implantology. Yet, this material is not exempt from complications. For these reasons, ceramic alternatives to titanium have emerged. Thus, the purpose of this study is to evaluate peri-implant hard and soft tissue stability with the use of a one-piece ceramic implant (Straumann® PURE Ceramic Implant) during 1 year of follow-up. Study design One-piece all-ceramic zirconia (ZrO2) implants were placed to replace single missing teeth in the esthetic zone. Six to 8 weeks after the procedure, the definitive prosthesis was fabricated. At the time of prosthesis, placement (T0) photographs and periapical radiographs were taken, and the following clinical parameters were recorded: probing depth (PD), plaque index (PI), bleeding on probing (BOP), suppuration on probing (SOP), distance from gingival margin to incisal edge (GM-IE), and Jemt papilla index (JPI). Follow-up appointments were scheduled at 4 (T4), 8 (T8), and 12 (T12) months, when the same parameters were recorded. In addition, plaque control was reinforced and prophylaxis was carried out. In this last appointment, a final periapical radiograph was taken to assess marginal bone loss. Results A total of 32 zirconia implants were placed in 28 patients (16 women and 12 men, aged between 34 and 67 years). The survival and success rate were 96.9%. The increase in probing depth from baseline to 12 months was 0.78 mm. Assessments of plaque index and bleeding on probing showed a slight increase throughout the study. Conclusions The results obtained with the Straumann® PURE Ceramic implants show them to exhibit very good clinical behavior. The survival rate of the implants of our pilot study was 96.9%. For these reasons, we can say that zirconia implants could be an alternative to titanium implants in the esthetic zone.

scholarly journals Aesthetic Outcomes and Peri-Implant Health of Angled Screw Retained Implant Restorations Compared with Cement Retained Crowns: Medium Term Follow-Up

2021 ◽  
Vol 12 (2) ◽  
pp. 35
Author(s):  
Livia Nastri ◽  
Ludovica Nucci ◽  
Vincenzo Grassia ◽  
Rino Miraldi
Keyword(s):  
Bone Loss ◽  
Functional Results ◽  
Technical Solution ◽  
Marginal Bone Loss ◽  
Single Tooth ◽  
Natural Teeth ◽  
The Aesthetic ◽  
Single Implant ◽  
Single Tooth Implant

Single tooth implant restorations in the aesthetic area are a demanding challenge. If a complete osseointegration is mandatory, the final result has to result in a higher standard of biomimetic and soft tissue health among natural teeth. This outcome is traditionally pursued by cementing crowns over individualized abutments. However, in recent years, the need for controlling peri-implant health and the preference towards a retrievable solution has led to an increase in screw-retained crowns, which is not always applicable when the implant axis is not ideal. In the aesthetic area, the use of a novel technical solution represented by the angled screw channel (ASC) of the abutment has been proposed in order to match the advantages of the screwed solution with the aesthetic demands. The aim of this study was to compare ASC crowns to cemented crowns (CC) in single implant restorations using the white esthetic score (WES) and pink esthetic score (PES) at the crown delivery and at a follow-up of a minimum of 2 years. Peri-implant health and marginal bone loss (MBL) were also evaluated. The mean follow-up was 44.3 months, with a mean MBL of 0.22 mm in the ASC group and 0.29 mm in the CC group. The total WES/PES score was 16.6 for ASC, compared with 17.3 for CC at baseline, and 16.2 and 17.1, respectively, at follow-up. Both of the groups reached a high WES/PES, and this was maintained over time, without signs of peri-implant diseases or bone loss, regardless of the choice of connection. In conclusion, ASC can be adopted in cases where the implant axis is not ideal, with aesthetic and functional results that are comparable to implants restored by cemented crowns.

The Microtomographic Evaluation of Marginal Bone Resorption of Immediately Loaded Scalloped Design Implant With Various Microthread Configurations in Canine Mandible: Pilot Study

2010 ◽  
Vol 36 (5) ◽  
pp. 357-362 ◽  
Author(s):  
Young-Seok Park ◽  
Seung-Pyo Lee ◽  
Chong-Hyun Han ◽  
Joo Hyun Kwon ◽  
Young-Chul Jung
Keyword(s):  
Pilot Study ◽  
Bone Resorption ◽  
Bone Loss ◽  
Titanium Implant ◽  
Marginal Bone Loss ◽  
Future Studies ◽  
Preliminary Study ◽  
Type 3

Abstract This study was undertaken to evaluate the effect of microthread geometry of scalloped design implant on marginal bone resorption. Four types of scalloped design titanium implant specimens were prepared. The type 1 implant had a machined scalloped collar, type 2 had a sandblasted and acid-etched scalloped collar, type 3 had horizontal microthreads, and type 4 had parabolic microthreads, which are parallel with the scalloped conical margin. Two implants of a type were randomly installed immediately after extraction in the mandible of a beagle dog. Definitive prostheses were delivered immediately after surgery. After 12 weeks of healing, the dog was sacrificed and microtomography was performed. Type 4 specimens showed a marginal bone loss pattern definitively analogous to the scalloped margin. In this preliminary study, microthread geometry affected the marginal bone resorption pattern of scalloped design implants. However, additional specimens and more controlled conditions should be applied in future studies to confirm these results.

scholarly journals A split-mouth clinico-radiographic comparative study for evaluation of crestal bone and peri-implant soft tissues in immediately loaded implants with and without platelet-rich plasma bioactivation

2019 ◽  
Vol 13 (2) ◽  
pp. 117-122
Author(s):  
Vande Aaditee Vishnu ◽  
Pronob Kumar Sanyal ◽  
Shivsagar Tewary ◽  
Kumar Nilesh ◽  
Roy Malvika Suresh Prasad ◽  
...  
Keyword(s):  
Bone Loss ◽  
Soft Tissues ◽  
Platelet Rich Plasma ◽  
Control Site ◽  
Marginal Bone Loss ◽  
Probing Depth ◽  
Tissue Healing ◽  
Single Piece ◽  
Edentulous Patients ◽  
The Right

Background. This study evaluated the viability of platelet-rich plasma for enhancement of osseous and associated soft tissue healing around single-piece implants, subjected to immediate loading and to compare it with a control site not treated with PRP. Methods. Twenty completely edentulous patients were selected and 2 one-piece implants with O-ball head were placed for mandibular overdenture. The implant on the right side was treated with PRP whereas the left side implant served as a control. All the cases were immediately loaded and marginal bone loss, probing depth, percussion, implant mobility and peri-implantitis were assessed and compared at 3, 6, 9 and 12 months. Results. Overall analysis of the results showed less marginal bone loss, probing depth, percussion, implant mobility and periimplantitis around implants treated with PRP; however, the results were insignificant statistically. Conclusion. PRP can be used as a viable treatment adjunct in immediately loaded one-piece implants.

scholarly journals Effect of Rough Surface Platforms on the Mucosal Attachment and the Marginal Bone Loss of Implants: A Dog Study

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 802 ◽  
Author(s):  
Javier Montero ◽  
Alberto Fernández-Ruiz ◽  
Beatriz Pardal-Peláez ◽  
Alvaro Jiménez-Guerra ◽  
Eugenio Velasco-Ortega ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Bone Resorption ◽  
Bone Loss ◽  
Linear Regression Analysis ◽  
Butt Joint ◽  
Marginal Bone Loss ◽  
Machined Surface ◽  
Bony Plate ◽  
Immediate Implants ◽  
Tissue Attachment

The preservation of peri-implant tissues is an important factor for implant success. This study aimed to assess the influence of the surface features of a butt-joint platform on soft-tissue attachment and bone resorption after immediate or delayed implant placement. All premolars and first molars of eight Beagle dogs were extracted on one mandible side. Twelve-weeks later, the same surgery was developed on the other side. Five implants with different platform surface configurations were randomly inserted into the post-extracted-sockets. On the healed side, the same five different implants were randomly placed. Implants were inserted 1 mm subcrestal to the buccal bony plate and were connected to abutments. The primary outcome variables were the supracrestal soft tissue (SST) adaptation and the bone resorption related to the implant shoulder. The SST height was significantly larger in immediate implants (IC95% 3.9–4.9 mm) compared to delayed implants (IC95% 3.1–3.5 mm). Marginal bone loss tended to be higher in immediate implants (IC95% 0.4–0.9 mm) than in delayed implants (IC95% 0.3–0.8 mm). Linear-regression analysis suggested that the SST height was significantly affected by the configuration of the platform (0.3–1.9 mm). Roughened surface platforms resulted in higher SST height when compared to machined surface platforms. Marginal bone loss was less pronounced in roughened designs.

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