Effect of Coated Surfaces influencing Screw Loosening in Implants: A Systematic Review and Meta-analysis

@article{Kannan2017EffectOC,
  title={Effect of Coated Surfaces influencing Screw Loosening in Implants: A Systematic Review and Meta-analysis},
  author={Abinaya Kannan and Suresh Venugopalan and Dhanraj M. Ganapathy},
  journal={World Journal of Dentistry},
  year={2017},
  volume={8},
  pages={496-502}
}
Introduction: The abutment screw loosening has been a common clinical mishap affecting the success of the implant in the long run. With repeated insertion and removal of the implant abutment screw during fabrication of the restoration, frictional wear at the microscopic level in the screw threads had been reported. Aim: To assess the effectiveness of screw coating in minimizing abutment screw loosening in dental implants in literature. Results: A database search yielded a total of 14 articles… 

Figures and Tables from this paper

Fixed Partial Dentures vs Implants in Replacement of Single Missing Tooth in University Hospital Setting - A Retrospective Study
TLDR
Whether systemic health issues or socioeconomic reasons played a role in the choice of treatment needs to be further evaluated with larger sample size and multicentre studies among the authors' population.
Primary stability achieved during implant surgery and bone loss at recovery in patients of a private dental institution — A retrospective analysis
TLDR
It is observed that primary stability at 30-40 Ncm or greater did not have any signi icant association with crestal bone loss, and an equi crestal placement of the implant was preferred irrespective of implant type.
Immediate Implant Placement In Anterior Maxilla – A Retrospective Study
Tooth failure in the region more generally results in a lack of bone volume in the vertical and horizontal direction. On attempts to reduce this alveolar bone resorption to preserve periodontal
Evaluation of preference of interim cements used for provisional restorations in fixed dental prosthesis - a retrospective study
TLDR
It is concluded that Zinc Oxide Eugenol was preferred for temporary cementation of provisional restorations, followed by Temp bond and IRM, and most of the postgraduates prefered IRM for temporary construction of provisional Restorations.
RELATION BETWEEN PRIMARY STABILITY AND BONE DENSITY -A RETROSPECTIVE STUDY
TLDR
A strong relationship between bone density and the primary implant stability was showed and the correlation was found to be statistically significant (p=0.000).
Evaluation of Elastomeric Impression in Fixed Partial Denture-A Retrospective Analysis of Patient Records
TLDR
It is concluded that double wash impression technique is the most preferred for fixed partial denture prosthesis because the voids and bubbles were the majority of the defects that were present than any other defects.
Quality Of Impressions Made For Fixed Partial Denture By Dental Students
TLDR
The quality of impression making by the postgraduate students were better than undergraduates and increased errors were found at the finish line and the presence of blood in impression surfaces were also observed.
Preference of Gingival Retraction Methods - Mechanical Over Chemico Mechanical Method in University Based Setting - A Retrospective Study
TLDR
It is in consensus with existing literature that gingival retraction can be obtained through the mechanical method and whether systemic health issues or socioeconomic reasons played a role in the acceptance of choice of treatment needs to be further evaluated with larger sample size and multicentre studies.
An Innovative Meta-Systematic Review into the Landscape of Literature and the Concluding Evidence on the Quality of Life of Patients Using Two Implant Supported Mandibular Complete Denture Prosthesis
TLDR
The oral health-related quality of life in completely edentulous mandibular patients wearing implant-supported overdentures was better when compared to conventional tissue-supported complete denture, and a minimum two implants in well-formedMandibular Edentulous ridges has sufficient improvement in oral health and evidence based treatment.
PREVALENCE OF DIFFERENT FULL VENEER CROWNS IN A UNIVERSITY HOSPITAL SETTING
TLDR
With the era of metal free crowns monolithic is preferred to solve the chipping problems which are to be considered before getting a hand layered zirconia crown or a metal ceramic crown.
...
...

References

SHOWING 1-10 OF 42 REFERENCES
PRELOAD AND TORQUE REMOVAL EVALUATION OF THREE DIFFERENT ABUTMENT SCREWS FOR SINGLE STANDING IMPLANT RESTORATIONS
TLDR
In conclusion, gold screws may be indicated to achieve superior longevity of the abutment-implant connection and, consequently, prosthetic restoration due to greater preload values yielded.
Abrasion of abutment screw coated with TiN
TLDR
It was concluded that TiN coating of abutment screw would reduce the loss of preload with good abrasion resistance and low coefficient of friction, and help to maintain screw joint stability.
An abutment screw loosening study of a Diamond Like Carbon-coated CP titanium implant.
TLDR
Data indicate that implants with a DLC coating are more resistant to an applied force than are those without the coating, and it is hoped that these results will be useful for preventing implant abutment screw loosening.
Effect of casting procedures on screw loosening in UCLA-type abutments.
TLDR
This study compared the loss of applied torque (detorque) values in machined titanium and in cast UCLA-type abutments for external hex abutment/implant interface and demonstrated significantly greater detorque values compared with all cast groups.
Removal torque of zirconia abutment screws under dry and wet conditions.
TLDR
There was always a loss in the initial torque values when the removal torque was measured under both conditions, suggesting that the abutment screw must be lubricated in saliva to avoid further loosening.
Reverse torque failure of screw-shaped implants in baboons: baseline data for abutment torque application.
TLDR
The clinical implications of these data suggest that the recommended torque level of 35 Ncm for abutment fastening may provide a margin of safety for most implants of similar design and material as used in this study.
Influence of abutment materials on the implant-abutment joint stability in internal conical connection type implant systems
TLDR
The abutment material can influence the stability of the interface in internal conical connection type implant systems and was inversely correlated with settlement, and positively correlated with compressive bending strength.
Stability of the implant/abutment joint in a single-tooth external-hexagon implant system: clinical and mechanical review.
TLDR
Clinical data regarding single-tooth implant treatment with Brånemark implants, specifically the CeraOne abutment system, and in vitro studies on joint stability were systematically assessed revealed insufficient clinical reports of longer duration that evaluate and verify longer-term success of the newly manufactured joint components.
...
...