研究目的
Evaluating the treatment efficacy of Er:YAG laser irradiation combined with direct pulp capping for pulp exposure due to caries.
研究成果
At the 12-month follow-up, the success rate of direct pulp capping in the laser-assisted group was significantly higher than that in the conventional group. The type of cavity influenced the outcomes; a proximal cavity in molar teeth may decrease the cumulative success rate. The effectiveness and optimal parameters of laser-assisted direct pulp capping should be further explored in future studies.
研究不足
The main limitation was the lack of samples, but as a pilot study, as many cases as possible were included and bias was controlled throughout the entire study process. Long-term randomised clinical trials with larger sample sizes are required to assess the benefits of Er:YAG laser-assisted direct pulp capping.
1:Experimental Design and Method Selection:
A randomised pilot trial comparing conventional direct pulp capping with calcium hydroxide to Er:YAG laser-assisted direct pulp capping.
2:Sample Selection and Data Sources:
45 patients with 47 deep caries lesions were included, with specific inclusion and exclusion criteria.
3:List of Experimental Equipment and Materials:
Er:YAG laser (LightWalker AT Fidelis; Fotona), calcium hydroxide composition (Dycal; Dentsply Caulk), glass ionomer cement, composite resin (Filtek Z350 XT Universal Restorative; 3M ESPE).
4:Experimental Procedures and Operational Workflow:
All operations were completed under local anaesthesia with a rubber dam. The tooth surface was disinfected, and caries was removed. The conventional group used calcium hydroxide, while the laser-assisted group used Er:YAG laser irradiation before applying calcium hydroxide.
5:Data Analysis Methods:
Kaplan-Meier survival analysis, log-rank test, and Cox proportional hazard regression analysis were used to compare the therapeutic efficacy between the two groups.
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