[Use of fiber-reinforced chemical curing resin to close the inter-proximate space of the posterior teeth].
OBJECTIVE
To investigate the clinical efficacy of using fiber-reinforced chemical curing resin to close the inter-proximate space of the posterior teeth and block the food impaction.


METHODS
One hundred and sixty-two patients with food impaction of posterior teeth were selected in this study. The total number of the food impaction was 170. They were divided into narrow-gap group and wide-gap group according to the damage of the inter-proximate space. Jingjin enamel adhesive reinforced polyethylene fiber ribbon was used in both group to close the inter-proximate space. The patients were reviewed at 6-month and 1-year. After the second follow-up examination, 161 restorations of 154 patients were included in this study. The differences between the 2 groups were analyzed by Chi-square test with SPSS 13.0 software package.


RESULTS
Statistical differences were found in the retention rate of the restorations at 6-month between the 2 groups (P<0.05). The retention rate in the narrow-gap group was significantly lower than that in the wide-gap group. However, there was no significant difference between the 2 groups at 1-year. There was no significant difference in integrality between the 2 groups at 6-month and 1-year.


CONCLUSIONS
The use of fiber-rein forced chemical curing resin to close the inter-proximate space of the posterior teeth and block the food impaction is more suitable for patients with clinical crown elongation, gingival recession, alveolar bone loss and the tissue damages in the inter-proximate space, which will cause food impaction.
Department of Periodontics, Stomatological Hospital of Hefei City. Hefei 230001, Anhui Province, China.E-mail:mdfmyy@chinaacc.com.
Feng-qin
FQ
Guo
Xiao-hong
XH
Ding
Xiao-hong
XH
Ding
Qi-ling
QL
Liu
Qi
Q
Geng
D001641:Bicuspid; D003793:Dental Restoration, Permanent; D006801:Humans; D008963:Molar; D012117:Resins, Synthetic
D012117:Resins, Synthetic