Systematic Analysis of Factors That Cause Loss of Preload in Dental Implants

Overview

Journal J Indian Prosthodont Soc

Specialty Dentistry

Date 2018 Aug 17

PMID 30111906

Citations 8

Authors

S Nithyapriya

A S Ramesh

A Kirubakaran

Jeevitha Mani

J Raghunathan

Affiliations

Soon will be listed here.

Abstract

Objective: This review analyses the factors that are responsible for the loss of preload.

Material And Methods: Screw geometry, Implant- Abutment Connection type (external hexagon platform, morse taper), Material properties viz Stiffness, Resilience, Materials viz gold, titanium, titanium alloy, Surface texture of the abutment screw, Condition of mating surfaces, Lubrication, Torque value, Rate of tightening (10, 20, 35N and retorque after 10mins) are taken into consideration in this study. The MEDLINE-PubMed database was searched from September 2016 to 10 years previously. Several journals were hand searched and from cross references. The outcome analysed are the factors that are responsible for loss of preload.

Results: The search yielded 84 articles. After excluding duplicated abstracts and applying the inclusion and exclusion criteria, 36 studies were eligible for analysis. The result shows that loss of preload can occurs depending upon the type of material used, torque method, torque sequences, abutment connection type, influence of lubrication, abutment collar length. However we detected some potential limitations in the studies selected, mainly a minimum number of samples used for the study. Hence we suggest further studies to guarantee an excellence in methodological quality.

Conclusion: Based on the available data it can be summarized that the knowledge of preload loss must be known for the clinicians to avoid such screw loosening and subsequent implant failure.

Citing Articles

Implant Mechanics, Biological Milieu, and Peri-Implantitis: A Narrative Review.

Mariam S, Kshirsagar R, Hasan S, Khadtare Y, Rajpurohit K, Rai H Cureus. 2024; 16(8):e67173.

PMID: 39295709 PMC: 11409158. DOI: 10.7759/cureus.67173.

Engaging vs. Non-Engaging Abutments: An In Vitro Study Evaluating Changes in Microgap and Screw Morphology.

Alzoubi F, Sabti M, Alsarraf E, Alshahrani F, Sadowsky S Dent J (Basel). 2024; 12(8).

PMID: 39195109 PMC: 11354066. DOI: 10.3390/dj12080265.

Assessment of Preload Loss after Cyclic Loading in the OT Bridge System in an "All-on-Four" Rehabilitation Model in the Absence of One and Two Prosthesis Screws.

Pozzan M, Grande F, Mochi Zamperoli E, Tesini F, Carossa M, Catapano S Materials (Basel). 2022; 15(4).

PMID: 35208121 PMC: 8879715. DOI: 10.3390/ma15041582.

Assessment of the Survival of a Single Implant-Supported Cantilever Prosthesis in the Anterior Mandible.

Kumari S, Singh G, Bagalkot K, Subramanium A, Isaac T, Chandni J Pharm Bioallied Sci. 2022; 13(Suppl 2):S1668-S1671.

PMID: 35018052 PMC: 8686883. DOI: 10.4103/jpbs.jpbs_403_21.

Effect of Application of a Bio-Adhesive on the Removal Torque Value and Rotational Misfit at the Implant-Abutment Junction: An In Vitro Study.

Arshad M, Khayat Zadeh S, Atai M, Shirani G, Romanos G, Bassir S Materials (Basel). 2021; 14(22).

PMID: 34832236 PMC: 8618869. DOI: 10.3390/ma14226832.

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