A 3-year retrospective study of clinical durability of bulk-filled resin composite restorations

다국어 초록 (Multilingual Abstract)

Objectives

This study aimed to assess the clinical longevity of a bulk-fill resin composite in Class II restorations for 3-year.








Materials and Methods

Patient record files acquired from the 40 patients who were treated due to needed 2 similar sizes Class II composite restorations were used for this retrospective study. In the experimental cavity, the flowable resin composite SDR was inserted in the dentinal part as a 4 mm intermediate layer. A 2 mm coverage layer with a nano-hybrid resin composite (CeramX) was placed on SDR. The control restoration was performed by an incremental technique of 2 mm using the nano-hybrid resin composite. The restorations were blindly assessed by 2 calibrated examiners using modified United States Public Health Service criteria at baseline and 1, 2, and 3 years. The data were analyzed using non-parametric tests (p = 0.05).








Results

Eighty Class II restorations were evaluated. After 3-years, 4 restorations (5%) failed, 1 SDR + CeramX, and 3 CeramX restorations. The annual failure rate (AFR) of the restorations was 1.7%. The SDR + CeramX group revealed an AFR of 0.8%, and the CeramX group an AFR of 2.5% (p > 0.05). Regarding anatomical form and marginal adaptation, significant alterations were observed in the CeramX group after 3-years (p < 0.05). The changes in the color match were observed in each group over time (p < 0.05).








Conclusions

The use of SDR demonstrated good clinical durability in deep Class II resin composite restorations.

다국어 초록 (Multilingual Abstract)

Objectives

This study aimed to assess the clinical longevity of a bulk-fill resin composite in Class II restorations for 3-year.




Materials and Methods

Patient record files acquired from the 40 patients who were treated due to needed 2 similar sizes Class II composite restorations were used for this retrospective study. In the experimental cavity, the flowable resin composite SDR was inserted in the dentinal part as a 4 mm intermediate layer. A 2 mm coverage layer with a nano-hybrid resin composite (CeramX) was placed on SDR. The control restoration was performed by an incremental technique of 2 mm using the nano-hybrid resin composite. The restorations were blindly assessed by 2 calibrated examiners using modified United States Public Health Service criteria at baseline and 1, 2, and 3 years. The data were analyzed using non-parametric tests (p = 0.05).




Results

Eighty Class II restorations were evaluated. After 3-years, 4 restorations (5%) failed, 1 SDR + CeramX, and 3 CeramX restorations. The annual failure rate (AFR) of the restorations was 1.7%. The SDR + CeramX group revealed an AFR of 0.8%, and the CeramX group an AFR of 2.5% (p > 0.05). Regarding anatomical form and marginal adaptation, significant alterations were observed in the CeramX group after 3-years (p < 0.05). The changes in the color match were observed in each group over time (p < 0.05).




Conclusions

The use of SDR demonstrated good clinical durability in deep Class II resin composite restorations.

참고문헌 (Reference)

1 Peumans M, "Thirteen-year randomized controlled clinical trial of a two-step self-etch adhesive in non-carious cervical lesions" 31 : 308-314, 2015

2 Sunnegårdh-Grönberg K, "Selection of dental materials and longevity of replaced restorations in Public Dental Health clinics in northern Sweden" 37 : 673-678, 2009

3 Frascino S, "Randomized prospective clinical trial of class ii restorations using low-shrinkage flowable resin composite" 45 : 19-29, 2020

4 van Dijken JW, "Randomized 3-year clinical evaluation of Class I and II posterior resin restorations placed with a bulk-fill resin composite and a one-step self-etching adhesive" 7 : 81-88, 2015

5 van Dijken JW, "Posterior bulk-filled resin composite restorations: a 5-year randomized controlled clinical study" 51 : 29-35, 2016

6 Kim RJ, "Polymerization shrinkage, modulus, and shrinkage stress related to tooth-restoration interfacial debonding in bulk-fill composites" 43 : 430-439, 2015

7 Fronza BM, "Monomer conversion, microhardness, internal marginal adaptation, and shrinkage stress of bulk-fill resin composites" 31 : 1542-1551, 2015

8 Campos EA, "Marginal adaptation of Cass II cavities restored with bulk-fill composites" 42 : 575-581, 2014

9 Pallesen U, "Longevity of posterior resin composite restorations in permanent teeth in Public Dental Health Service: a prospective 8 years follow up" 41 : 297-306, 2013

10 Opdam NJ, "Longevity of posterior composite restorations: a systematic review and meta-analysis" 93 : 943-949, 2014

11 Bucuta S, "Light transmittance and micro-mechanical properties of bulk fill vs. conventional resin based composites" 18 : 1991-2000, 2014

12 Ilie N, "Investigations on a methacrylate-based flowable composite based on the SDR™technology" 27 : 348-355, 2011

13 Ilie N, "Influence of various irradiation processes on the mechanical properties and polymerisation kinetics of bulk-fill resin based composites" 41 : 695-702, 2013

14 Czasch P, "In vitro comparison of mechanical properties and degree of cure of bulk fill composites" 17 : 227-235, 2013

15 Van Meerbeek B, "From Buonocore's pioneering acidetch technique to self-adhering restoratives. A status perspective of rapidly advancing dental adhesive technology" 22 : 7-34, 2020

16 Braga RR, "Factors involved in the development of polymerization shrinkage stress in resin-composites: a systematic review" 21 : 962-970, 2005

17 van Dijken JW, "Eight-year randomized clinical evaluation of Class II nanohybrid resin composite restorations bonded with a one-step self-etch or a two-step etch-and-rinse adhesive" 19 : 1371-1379, 2015

18 van Dijken JWV, "Durability of a low shrinkage TEGDMA/HEMA-free resin composite system in Class II restorations. A 6-year follow up" 33 : 944-953, 2017

19 Versluis A, "Does an incremental filling technique reduce polymerization shrinkage stresses?" 75 : 871-878, 1996

20 Alshali RZ, "Degree of conversion of bulk-fill compared to conventional resincomposites at two time intervals" 29 : e213-e217, 2013

21 Abbas G, "Cuspal movement and microleakage in premolar teeth restored with a packable composite cured in bulk or in increments" 31 : 437-444, 2003

22 Francis AV, "Cuspal flexure and extent of cure of a bulk-fill flowable base composite" 40 : 515-523, 2015

23 Moorthy A, "Cuspal deflection and microleakage in premolar teeth restored with bulk-fill flowable resin-based composite base materials" 40 : 500-505, 2012

24 El-Safty S, "Creep deformation of restorative resin-composites intended for bulk-fill placement" 28 : 928-935, 2012

25 Veloso SRM, "Clinical performance of bulk-fill and conventional resin composite restorations in posterior teeth: a systematic review and meta-analysis" 23 : 221-233, 2019

26 Van Ende A, "Bulk-filling of high C-factor posterior cavities: effect on adhesion to cavity-bottom dentin" 29 : 269-277, 2013

27 van Dijken JW, "Bulk-filled posterior resin restorations based on stress-decreasing resin technology: a randomized, controlled 6-year evaluation" 125 : 303-309, 2017

28 Ilie N, "Bulk-fill resin-based composites: an in vitro assessment of their mechanical performance" 38 : 618-625, 2013

29 Van Ende A, "Bulk-fill composites: a review of the current literature" 19 : 95-109, 2017

30 Kumagai RY, "Bond strength of a flowable bulk-fill resin composite in Class II MOD cavities" 7 : 427-432, 2015

31 van Dijken JW, "A randomized controlled three year evaluation of “bulk-filled” posterior resin restorations based on stress decreasing resin technology" 30 : e245-e251, 2014

32 van Dijken JW, "A randomized 10-year prospective follow-up of Class II nanohybrid and conventional hybrid resin composite restorations" 6 : 585-592, 2014

33 Pallesen U, "A prospective 8-year follow-up of posterior resin composite restorations in permanent teeth of children and adolescents in Public Dental Health Service: reasons for replacement" 18 : 819-827, 2014

34 van Dijken JW, "A 6-year prospective evaluation of a one-step HEMA-free self-etching adhesive in Class II restorations" 29 : 1116-1122, 2013

35 van Dijken JW, "A 15-year randomized controlled study of a reduced shrinkage stress resin composite" 31 : 1150-1158, 2015