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Clinical performance of resin composite restorations placed by dental students


Dental restoration failure
Dental restoration, permanent
Composite resins

How to Cite

Santos DCM dos, Besegato JF, Zaniboni JF, Ramos S de P, Cardoso S de A, Hoeppner MG. Clinical performance of resin composite restorations placed by dental students: a retrospective, cross-sectional, and observational study . Braz. J. Oral Sci. [Internet]. 2022 Jan. 3 [cited 2023 Jun. 11];21(00):e225991. Available from:


Aim: A retrospective, cross-sectional study was carried out to evaluate the performance of resin composite restorations placed by undergraduate dental students with 1 to 15 years of placement based on dental records. Methods: Four calibrated operators evaluated 498 restorations (anterior and posterior) of 120 patients according to Ryge’s validated criteria (USPHS). Results: The criteria that showed the smallest changes between the types of failures were color matching, marginal discoloration and surface texture. Regarding the longevity, the surface texture showed an increase in the frequency of failures from the second time interval (3.1 to 6 years). Higher prevalence of failure was found in class II and III restorations, with secondary caries being the main reason. No significant differences were found for anatomic form, marginal adaptation, and color matching. Class V restorations showed a higher fracture rate with total displacement of the restoration, with no increase in the frequency of fracture over time. Conclusion: High rate of restoration failure was observed, possibly due to the lack of experience and skills of the students. This outcome highlight the need for continuous revision and improvements of teaching practice regarding the development of clinical competences and skills by dental students.


Da Rosa Rodolpho PA, Cenci MS, Donassollo TA, Loguercio AD, Demarco FF. A clinical evaluation of posterior composite restorations: 17-year findings. J Dent. 2006 Aug;34(7):427-35. doi: 10.1016/j.jdent.2005.09.006.

Heintze SD, Rousson V, Hickel R. Clinical effectiveness of direct anterior restorations - a meta-analysis. Dent Mater. 2015 May;31(5):481-95. doi: 10.1016/

Moraschini V, KaFai C, Monte Alto R, Santos GO. Amalgam and resin composite longevity of posterior restorations: A systematic review and meta-analysis. J Dent. 2015 Sep;43(9):1043-50. doi: 10.1016/j.jdent.2015.06.005.

Opdam NJM, Bronkhorst EM, Roeters JM, Loomans BAC. Longevity and reasons for failure of sandwich and total-etch posterior composite resin restorations. J Adhes Dent. 2007;9(5):469-75.

Opdam NJM, Sande FHV, Bronkhorst E, Cenci MS, Bottenberg P, Pallesen U, et al. Longevity of posterior composite restorations: a systematic review and meta-analysis. J Dent Res. 2014 Oct;93(10):943-9. doi: 10.1177/0022034514544217.

Demarco FF, Corrêa MB, Cenci MS, Moraes RR, Opdam NJM. Longevity of posterior composite restorations: not only a matter of materials. Dent Mater. 2012 Jan;28(1):87-101. doi: 10.1016/

[SB BRAZIL 2003: National Research on Oral Health: main results]. Brasília: Ministry of Health of Brazil; 2004. 52p. Portuguese.

[SB BRAZIL 2010: National Research on Oral Health: main results]. Brasília: Ministry of Health of Brazil; 2012. 116p. Portuguese.

Heintze SD, Rousson V. Clinical effectiveness of direct class II restorations - a meta-analysis. J Adhes Dent. 2012 Aug;14(5):407-431. doi: 10.3290/j.jad.a28390.

Da Rosa Rodolpho PA, Donassollo TA, Cenci MS, Loguércio AD, Moraes RR, Bronkhorst EM, et al. 22-year clinical evaluation of the performance of two posterior composites with different filler characteristics. Dent Mater. 2011 Oct;27(10):955-63. doi: 10.1016/

Opdam NJM, Bronkhorst EM, Loomans BAC, Huysmans MCDNJM. 12-year survival of composite vs. amalgam restorations. J Dent Res. 2010 Oct;89(10):1063-7. doi: 10.1177/0022034510376071.

Demarco FF, Collares K, Correa MB, Cenci MS, Moraes RR, Opdam NJ. Should my composite restorations last forever? Why are they failing? Braz Oral Res. 2017 Aug;31(Suppl 1):e56. doi: 10.1590/1807-3107BOR-2017.vol31.0056.

Adebayo OA, Burrow MF, Tyas MJ. Bond strength test: role of operator skill. Aust Dent J. 2008 Jun;53(2):145-50. doi:10.1111/j.1834-7819.2008.00024.x.

Opdam NJM, Loomans BAC, Roeters FJM, Bronkhorst EM. Five-year clinical performance of posterior resin composite restorations placed by dental students. J Dent. 2004 Jul;32(5):379-83. doi: 10.1016/j.jdent.2004.02.005.

Moura FRR, Romano AR, Piva E L, Júnior ASR, Demarco FF. Three-year clinical performance of composite restorations placed by undergraduate dental students. Braz Dent J. 2011;22(2):111-6. doi: 10.1590/s0103-64402011000200004.

Barnes DM, Blank LW, Gingell JC, Gilner PP. A clinical evaluation of a resin-modified glass ionomer restorative material. J Am Dent Assoc. 1995 Sep;126(9):1245-53. doi: 10.14219/jada.archive.1995.0359.

Montagner AF, Sande FH, Müller C, Cenci MS, Susin AH. Survival, reasons for failure and clinical characteristics of anterior/posterior composites: 8-year findings. Braz Dent J. 2018 Nov-Dec;29(6):547-54. doi: 10.1590/0103-6440201802192.

Opdam NJ, Bronkhorst EM, Roeters JM, Loomans BA. A retrospective clinical study on longevity of posterior composite and amalgam restorations. Dent Mater. 2007 Jan;23(1):2-8. doi: 10.1016/

Kitasako Y, Sadr A, Nikaido T, Tagami J. Relationship between perception of difficulty and clinical experience of approximal composite restorations in final-year undergraduate students at Tokyo Medical and Dental University. J Med Dent Sci. 2011;58(1):1-5.

Coelho SFH, Rocha AC, Rubini A, Klein-Júnior CA, Demarco FF. Influence of adhesive system and bevel preparation on fracture strength of teeth restored with composite resin. Braz Dent J. 2010;21(4):327-31. doi: 10.1590/s0103-64402010000400007.

Garoushi S, Vallittu P, Shinya A, Lassila L. Influence of increment thickness on light transmission, degree of conversion and micro hardness of bulk fill composites. Odontology. 2016 Sep;104(3):291-7. doi: 10.1007/s10266-015-0227-0.

Perdigão J. Dentin bonding-variables related to the clinical situation and the substrate treatment. Dent Mater. 2010 Feb;26(2):24-37. doi: 10.1016/

Reis AF, Giannini M, Lovadino JR, dos Santos Dias CT. The effect of six polishing systems on the surface roughness of two packable resin-based composites. Am J Dent. 2002;15(3):193-7.

Söderholm KJ, Zigan M, Ragan M, Fischlschweiger W, Bergman M. Hydrolytic degradation of dental composites. J Dent Res. 1984 Oct;63(10):1248-54. doi: 10.1177/00220345840630101701.

De Witte AMJC, De Maeyer EAP, Verbeeck RMH. Surface roughening of glass ionomer cements by neutral NaF solutions. Biomaterials 2003 May;24(11):1995-2000. doi: 10.1016/s0142-9612(02)00617-8.

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