Application of different biomaterial capping agents in pulpotomy of deciduous molars / 实用口腔医学杂志

ABSTRACT

Objective: To investigate the effects of biomaterial capping agents mineral trioxide polymer (MTA), calcium hydroxide iodoform paste (CHI) and calcium hydroxide (CH), in the pulpectomy of deciduous molars. Methods: 96 children undewent deciduous molar pulpectomy were included and divided into MTA, CHI and CH groups (n = 32), MTA, CHI and CH were respectively usd as capping agents for the 3 groups. The patients were regularly examined clinically and by X-ray at 3, 6 and 12 months after surgery. Results: 3 months after treatment the total effective rate of MTA, CHI and CH groups was 100％, 96. 88％ and 96. 88％ respectively (P＞ 0. 05), 6 months after operation 90. 63％, 93. 75％ and 78. 13％ respectively (P＞ 0. 05), 12 months after operation. 87. 50％, 84. 38％ and 59. 38％ respectively (P ＜ 0. 05) . There was no significant difference in root resorption between the 3 groups at 3 months and 6 months after surgery (P＞ 0. 05) . 12 months after operation, the non-root resorption rate of MTA, CHI and CH group was 93.75％, 87. 50％ and 50. 00％ respectively (P ＜ 0. 05) . The mild root resorption rate of group MTA, CHI and CH was 3. 13％, 9. 38％and 21. 88％; the moderat resorption 3. 13％, 3. 13％ and 18. 75％; the severe resorption 0, 0 and 9. 38, respectively. Conclusion:MTA and CHI used as capping agents are effective in pulpotomy, CH is prone to root absorption, which leads to treatment failure.