Awareness of possible complications associated with direct composite restorations: A multinational survey among dentists from 13 countries with meta-analysis


Lehmann A. Nijakowski K. Jankowski J. Donnermeyer D. Palma P.J. Drobac M. Martins J.F.B. Pertek Hatipoğlu F. Tulegenova I. Javed M.Q. Alharkan H.M. Bekjanova O. Wyzga S. Alkhawas M.-B.A.M. Kudenga R. Hatipoğlu Ö. Surdacka A.
June 2024Elsevier Ltd

Journal of Dentistry
2024#145

Objectives: Resin-based composites (RBCs) evolved into favoured materials for teeth restorations, marking a significant change in dental practice. Despite many advantages, RBCs exhibit various limitations in their physical and chemical properties. Therefore, we assessed the dentists awareness of possible complications after direct composite restorations and their opinions about this material. Methods: The online questionnaire was created in English in May 2023. A 16-item survey was dedicated to general dentists and specialists. The first section included four questions related to demographic characteristics. The second section comprised twelve questions and focused on awareness of potential side effects of composite restorations, the most crucial advantages and disadvantages of composite resins, and the frequency of experienced clinical complications after the application of composite materials. Results: A total of 1830 dentists from 13 countries took part in the survey. Dentists most often declared awareness of low adhesion to the dentine (77.5 %) and, most rarely, solubility in oral fluids (42.6 %). Aesthetics was identified as the main advantage of composite fillings (79 %), followed by the possibility of repair (59 %) and adhesion to enamel (57 %). Polymerisation shrinkage was a major disadvantage for most countries (70 % overall). Analysing the declared potential clinical complications for all countries, statistically significant findings were obtained for marginal discolouration (OR=2.982, 95 % CI: 1.321–6.730, p-value=0.009) and borderline significance for secondary caries (OR=1.814, 95 % CI: 0.964–3.415, p-value=0.065). Conclusions: Dentists value aesthetics and repairability but are aware of shrinkage and experience discolouration. The issue of toxicity and solubility seems to be the least known to dentists. Clinical significance: Dentists should use RBCs with critical caution due to possible side effects. Despite the undoubted aesthetics of direct composite restorations, it is necessary to remember potential clinical complications such as marginal discolouration or secondary caries.

Composite resin , Dental restoration failure , Permanent dental filling , Questionnaire , Side effects

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Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, Poznan, Poland
Department of Periodontology and Operative Dentistry, University Münster, Germany
Center for Innovation and Research in Oral Sciences (CIROS) and Institute of Endodontics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
Faculty of Medicine, Department of Dental Medicine, University of Novi Sad, Serbia
Department of Endodontology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
Department of Endodontics, Niğde Ömer Halisdemir University, Turkey
Kazakh National Medical University by S.D. Asfendiyarov, Kazakhstan
Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Qassim, Buraydah, Saudi Arabia
Tashkent State Dental Institute, Department of Faculty Therapeutic Dentistry, Tashkent, Uzbekistan
Endodontic Department, Al-Azhar University, Cairo, Egypt
Department of Odontology, University of Pretoria, Pretoria, South Africa
Department of Restorative Dentistry, Niğde Ömer Halisdemir University, Turkey

Department of Conservative Dentistry and Endodontics
Department of Periodontology and Operative Dentistry
Center for Innovation and Research in Oral Sciences (CIROS) and Institute of Endodontics
Faculty of Medicine
Department of Endodontology
Department of Endodontics
Kazakh National Medical University by S.D. Asfendiyarov
Department of Conservative Dental Sciences
Tashkent State Dental Institute
Endodontic Department
Department of Odontology
Department of Restorative Dentistry

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