Clinical Performance of Short Dental Implants Supporting Single Crown Restoration in the Molar-Premolar Region: Cement Versus Screw Retention

Abstract Objectives The aim of the present study was to investigate whether peri-implant clinical parameters (modified plaque index (mPI), bleeding and/or suppuration on probing (B/SOP)) and local factors (type of prostheses, screw emergence, platform diameter, and abutment angulation) might contribute to the development of additional bone loss and peri-implantitis around dental implants. Materials and methods Two hundred seventy-seven external hex connection implants placed in the posterior maxilla of 124 patients were retrospectively evaluated. They were divided into two groups: physiologic bone loss < 2 mm (PBL) or additional bone loss ≥ 2 mm (ABL). GEE logistic regression was applied to evaluate the influence of type of prostheses (implant-supported single crown (ISSC), fixed partial denture (ISFPD), and full denture (ISFD)) and clinical parameters (mPI and S/BOP) on bone loss. Results Among the 277 implants, 159 (57.4%) presented PBL and 118 (42.6%) presented ABL. Within the ABL group, 20.6% implants were diagnosed with peri-implantitis. mPI significantly correlated with the type of prosthesis and the highest value of mPI (index = 3) was observed in ISFD (23.8%). Moreover, peri-implantitis was more frequently associated with ISFD (32.79%) than ISSC and ISFDP (13.79% and 13.48, respectively) Conclusions ISFD in the posterior maxilla presented high rates of ABL and showed a higher prevalence of peri-implantitis. None of the local factors seemed to contribute to the development of these conditions. Further investigations are needed to prospectively support the results of the present study. Clinical relevance Patients rehabilitated with ISFD should be carefully monitored and have more frequent maintenance visits to prevent or control peri-implant bone loss.

Download Full-text

Cemented Single Crown Retention on Dental Implants: An In Vitro Study

The International Journal of Prosthodontics ◽

10.11607/ijp.4994 ◽

2017 ◽

Vol 30 (2) ◽

pp. 133-135 ◽

Cited By ~ 1

Author(s):

Stefan Rues ◽

Melissa Fugina ◽

Peter Rammelsberg ◽

Stefanie Kappel

Keyword(s):

Dental Implants ◽

In Vitro Study ◽

Vitro Study ◽

Single Crown

Download Full-text

Esthetic and Clinical Performance of Implant-Supported All-Ceramic Crowns Made with Prefabricated or CAD/CAM Zirconia Abutments: A Randomized, Multicenter Clinical Trial

Journal of Dental Research ◽

10.1177/0022034516681767 ◽

2016 ◽

Vol 96 (2) ◽

pp. 163-170 ◽

Cited By ~ 31

Author(s):

J.G. Wittneben ◽

J. Gavric ◽

U.C. Belser ◽

M.M. Bornstein ◽

T. Joda ◽

...

Keyword(s):

Clinical Trial ◽

Clinical Performance ◽

Multicenter Clinical Trial ◽

Anterior Maxilla ◽

Single Crown ◽

Significant Difference ◽

All Ceramic ◽

Cad Cam ◽

Group A ◽

Group B

Patients’ esthetic expectations are increasing, and the options of the prosthetic pathways are currently evolving. The objective of this randomized multicenter clinical trial was to assess and compare the esthetic outcome and clinical performance of anterior maxillary all-ceramic implant crowns (ICs) based either on prefabricated zirconia abutments veneered with pressed ceramics or on CAD/CAM zirconia abutments veneered with hand buildup technique. The null hypothesis was that there is no statistically significant difference between the 2 groups. Forty implants were inserted in sites 14 to 24 (FDI) in 40 patients in 2 centers, the Universities of Bern and Geneva, Switzerland. After final impression, 20 patients were randomized into group A, restored with a 1-piece screw-retained single crown made of a prefabricated zirconia abutment with pressed ceramic as the veneering material using the cut-back technique, or group B using an individualized CAD/CAM zirconia abutment (CARES abutment; Institut Straumann AG) with a hand buildup technique. At baseline, 6 mo, and 1 y clinical, esthetic and radiographic parameters were assessed. Group A exhibited 1 dropout patient and 1 failure, resulting in a survival rate of 94.7% after 1 y, in comparison to 100% for group B. No other complications occurred. Clinical parameters presented stable and healthy peri-implant soft tissues. Overall, no or only minimal crestal bone changes were observed with a mean DIB (distance from the implant shoulder to the first bone-to-implant contact) of −0.15 mm (group A) and 0.12 mm (group B) at 1 y. There were no significant differences at baseline, 6 mo, and 1 y for DIB values between the 2 groups. Pink esthetic score (PES) and white esthetic score (WES) values at all 3 examinations indicated stability over time for both groups and pleasing esthetic outcomes. Both implant-supported prosthetic pathways represent a valuable treatment option for the restoration of single ICs in the anterior maxilla ( ClinicalTrials.gov NCT02905838).

Download Full-text

Does Implant-Abutment Interface affect Marginal Bone Levels around Implants?

European Journal of Dentistry ◽

10.1055/s-0039-1688538 ◽

2019 ◽

Vol 13 (01) ◽

pp. 047-052 ◽

Cited By ~ 1

Author(s):

Eser Elemek ◽

Artun Urgancioglu ◽

Janberd Dincer ◽

Altug Cilingir

Keyword(s):

Bone Loss ◽

Dental Implants ◽

Marginal Bone Loss ◽

Single Crown ◽

Implant Abutment ◽

Different Types ◽

Group A ◽

Group B ◽

Switch Group

Abstract Objective The use of dental implants with different types of surface roughness and implant-abutment interface has brought about a situation of marginal bone loss. Therefore, the aim of this study was to analyze and compare marginal bone levels of different types of osseointegrated dental implants with platform switch (Group A: Ankylos, Mannheim, Germany) and platform match (Group B: Dentsply Xive, Mannheim, Germany, and Group C: MIS Implant Technologies, Karmiel, Israel). Materials and Methods One hundred and seven patients (52 men and 55 women) with a mean age of 54.79 (standard deviation ± 12.35) years and a total of 321 dental implants (Group A, n = 198; Group B, n = 58; and Group C, n = 65) placed in a private practice between April 2006 and May 2015 were retrospectively analyzed. In addition to demographic information and implant characteristics, marginal bone levels were evaluated by Image J (Wayne Rasband, National Institute of Health, Maryland) program. Results The mean age of all patients was 54.79 ± 12.35 years, and 51.5% of them were women. Implants supporting fixed bridge were most commonly used in all groups (65%), whereas only 20% were restored with a single crown and 15% with overdentures. In total, 47.5% of all implants showed no marginal bone loss. Mean bone loss in Group A was significantly lower (0.81 ± 1.60 mm) as compared to Group B (1.58 ± 1.59 mm) and Group C (1.18 ± 1.36) (p < 0.005). Conclusion Among different types of dental implants, platform switch seems to preserve marginal bone levels and increase the long-term success of dental implants.

Download Full-text

Intermediate long-term clinical performance of dental implants placed in sites with a previous early implant failure: a retrospective analysis

Clinical Oral Implants Research ◽

10.1111/clr.12485 ◽

2014 ◽

Vol 26 (12) ◽

pp. 1443-1449 ◽

Cited By ~ 13

Author(s):

Feng Wang ◽

Zhiyong Zhang ◽

Alberto Monje ◽

Wei Huang ◽

Yiqun Wu ◽

...

Keyword(s):

Retrospective Analysis ◽

Dental Implants ◽

Clinical Performance ◽

Implant Failure

Download Full-text

Long term clinical performance of 10 871 dental implants with up to 22 years of follow‐up: A cohort study in 4247 patients

Clinical Implant Dentistry and Related Research ◽

10.1111/cid.12994 ◽

2021 ◽

Author(s):

David French ◽

Ronen Ofec ◽

Liran Levin

Keyword(s):

Cohort Study ◽

Dental Implants ◽

Clinical Performance

Download Full-text

Surface Modification of Titanium Orthodontic Implants

10.5772/intechopen.100038 ◽

2021 ◽

Author(s):

Abdulqadir Rampurawala ◽

Amol Patil

Keyword(s):

Surface Modification ◽

Dental Implants ◽

Orthodontic Treatment ◽

Clinical Performance ◽

Side Surface ◽

Implant Surface ◽

Orthodontic Implants ◽

Considerable Impact ◽

And Control ◽

Modification Of Titanium

Orthodontic miniscrews have had a considerable impact on modern orthodontic treatment, not only by providing a new source of anchors for anchorage-demanding cases, but also for force management and control. Whilst miniscrews need to be mechanically stable during treatment to provide sufficient anchorage and predictable force control, as temporary anchorage devices they need also be easy to remove after orthodontic treatment. These requirements differentiate orthodontic miniscrews from dental implants - which once placed, are not to be removed - and dictate the approach as to how their clinical performance can be optimized. Over the past decade, various titanium surface modifications and improvements in implant surface topography have shown to enhance osseointegration of endosseous dental implants. Some of these techniques have helped provide a similar enhancement of the biomechanical potential of orthodontic miniscrews as well. In this perspective, we present a brief discussion on all such reported techniques followed by a detailed account of the most recently proposed ultraviolet photofunctionalization technique - a novel chair-side surface modification method.

Download Full-text