Prospective clinical evaluation of three different bonding systems in class V resin restorations with or without mechanical retention

Kyung-Wook Lee; Sae-Joon Choung; Young-Chul Han; Ho-Hyun Son; Chung-Moon Um; Myoung-Hwan Oh; Byeong-Hoon Cho

doi:10.5395/JKACD.2006.31.4.300

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Lee, Choung, Han, Son, Um, Oh, and Cho: Prospective clinical evaluation of three different bonding systems in class V resin restorations with or without mechanical retention

Original Article

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2006; 31(4): 300-311.

Published online: 31 July 2006

DOI: https://doi.org/10.5395/JKACD.2006.31.4.300

Prospective clinical evaluation of three different bonding systems in class V resin restorations with or without mechanical retention

Kyung-Wook Lee¹, Sae-Joon Choung¹, Young-Chul Han¹, Ho-Hyun Son^1,², Chung-Moon Um^1,², Myoung-Hwan Oh³, Byeong-Hoon Cho^1,²

¹Department of Conservative Dentistry, School of Dentistry, Seoul National University, Seoul, Korea.

²Dental Research Institute, Seoul National University, Seoul, Korea.

³Vericom R&D Center, Anyang, Korea.

Corresponding Author: Byeong-Hoon Cho. Dept. of Conservative Dentistry, School of Dentistry, and Dental Research Institute, Seoul National Univ., 28-2 Yeongun-dong, Chongro-gu, Seoul, Korea 110-749. Tel: +82-2-2072-3514, Fax: +82-2-764-3514, chobh@snu.ac.kr

Received 14 January 2006 Revised 17 February 2005 Accepted 24 March 2006

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study is to evaluate prospectively the effect of different bonding systems and retention grooves on the clinical performance of resin restorations in non-carious cervical lesions (NCCLs). Thirty-nine healthy adults who had at least 2 NCCLs in their premolar areas were included in this study. One hundred and fifty teeth were equally assigned to six groups: (A) Scotchbond Multi-Purpose (SBMP, 3M ESPE, St. Paul, MN, USA, 4th generation bonding system) without retention grooves; (B) SBMP with retention grooves; (C) BC Plus (Vericom Co., Anyang, Gyeonggido, Korea, 5th generation bonding system) without retention grooves; (D) BC Plus with retention grooves; (E) Adper Prompt (3M ESPE, Seefeld, Germany, 6th generation bonding system) without retention grooves; (F) Adper Prompt with retention grooves. All cavities were filled with a hybrid composite resin, Denfil (Vericom Co., Anyang, Gyeonggido, Korea) by one operator. Restorations were evaluated at baseline and at 6-month recall, according to the modified USPHS (United States Public Health Service) criteria. Additionally, clinical photographs were taken and epoxy resin replicas were made for SEM evaluation. At 6-month recall, there were some differences in the number of alpha ratings among the experimental groups. But, despite the differences in the number of alpha ratings, there was no significant difference among the 3 adhesive systems (p > 0.05). There was also no significant difference between the groups with or without mechanical retention (p > 0.05). Follow-ups for longer periods than 6 months are needed to verify the clinical performance of different bonding systems and retention grooves.

Keywords: Class V resin restoration, Bonding system, Retention groove, Prospective clinical study, USPHS criteria

Figures and Tables

Figure 1

Cavity preparation of experimental tooth.

Figure 2

Deterioration of the restorations - An example of "marginal discoloration" observed in group E (Adper Prompt, no retention groove), (A) baseline, (B) 6-month recall.

Figure 3

Scanning electron micrographs of the interface between tooth and restoration - An example of marginal breakdown observed in group E (Adper Prompt, no retention groove), (A) baseline: continuous margin is observed, (B) 6-month recall: breakdown of incisal margin is observed (arrow), (C) higher magnification of the area pointed by arrow in Figure 3-(B).

Table 1

Design of experimental groups (Number of teeth in each group = 25)

Table 2

Bonding procedures in each group

Table 3

Modified USPHS criteria used for the clinical evaluation

Table 4

Number of teeth in each rating of the modified USPHS criteria

^†These columns present the number of teeth included in each rating for each criterion.

^‡This row presents the ratio of the number of teeth not showing alpha rating to the total number of teeth included in each group.

^*The number of teeth in each group was 25 at baseline. One tooth from group E (Adper prompt without groove) was dropped out at 6-month recall, because its restoration was replaced with a new restoration using SBMP due to persistent hypersensitivity.

Table 5

Frequency of undesirable changes in each criterion between baseline and 6-month recall

^*The other criteria (retention, secondary caries, wear-anatomic form, postoperative sensitivity) are not included in this table, because all the teeth were rated alpha in these criteria at 6-month recall.

Table 6

Marginal discoloration & marginal adaptation at 6-month recall

Notes

This work was supported by a grant from the Ministry of Health and Welfare of Korea (Grant No. 03-PJ1-PG1-CH09-0001).

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ORCID iDs: Byeong-Hoon Cho
https://orcid.org/http://orcid.org/0000-0001-9641-5507
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