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Evaluation of residual contamination on reused healing abutments

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Abstract

Objectives

The purpose of this study is to evaluate residual contamination of healing abutments sterilized by dealers of dental implant companies.

Material and methods

Healing abutments collected from dealers of different implant companies were randomly numbered, and they were examined for visible deformation and contamination on the abutment surface, packaging errors, and presence of a sterilization indicator. The healing abutments were stained with a dye solution for contamination detection and evaluated by dividing into different regions. The presence of residual contamination was examined through photographic images taken from the healing abutments and the data obtained were recorded. Pearson’s chi-square analysis was used to evaluate the relation between implant brands and contamination status. Significance was evaluated as p <0.05.

Results

Visible residual contamination was detected in approximately 31% of the healing abutments. After the staining procedure, in the visual assessment of the stained surfaces, residual contamination was found in at least one region of all healing abutments except one (n=176, 99.4%). The most intense staining was seen in the screw driver hole (n=172, 97.1%), body (n=113, 63.8%), occlusal (n=107, 60.4%), screw (n=79, 44.6%), and connector (n=72, 40.6%) regions, respectively. A significant relationship was found between the brands and the contamination status (p <0.05).

Conclusion

The reuse of healing abutments is not suitable, as it does not ensure optimum cleaning and sterilization, and it is not possible to eliminate contaminants completely.

Clinical relevance

Despite the economic benefits of multiple use of healing abutments, disadvantages should be carefully evaluated by clinicians.

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Authors and Affiliations

  1. Department of Prosthodontics, Faculty of Dentistry, Pamukkale University, Camlaraltı Mahallesi, Suleyman Demirel Cad. No:95, 20160, Pamukkale, Denizli, Turkey

    Sezgi Cinel Sahin

  2. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Pamukkale University, Camlaraltı Mahallesi, Suleyman Demirel Cd. No:95, 20160, Pamukkale, Denizli, Turkey

    Kadriye Ayca Dere

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  1. Sezgi Cinel Sahin
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  2. Kadriye Ayca Dere
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Correspondence to Sezgi Cinel Sahin.

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Ethical approval was obtained from the Ethics Committee of Pamukkale University for the study (No. 60116787-020 / 10345).

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For this type of study, formal consent is not required.

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The authors declare no competing interests.

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Cite this article

Sahin, S.C., Dere, K.A. Evaluation of residual contamination on reused healing abutments. Clin Oral Invest 25, 5889–5895 (2021). https://doi.org/10.1007/s00784-021-03894-9

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  • DOI: https://doi.org/10.1007/s00784-021-03894-9

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