Evaluating the Outcomes of Minimally Invasive Therapy Versus Surgery for Oral Mucoceles: A Systematic Review and Meta-analysis

Objective

: Oral mucoceles could be managed with minimally invasive therapy (MIT) or conventional surgery, and both modalities reportedly possess advantages and demerits. This review aims to investigate and compare the postoperative disease recurrence and complications of these interventions with each other.

Methods

: Relevant studies were searched in five databases (PubMed, Embase, Scopus, Web of Science and Cochrane Library) from inception to December 17, 2022. The pooled relative risks (RRs) with 95% confidence intervals (CIs) of disease recurrence, overall complications, nerve injury and bleeding/hematoma in MIT versus conventional surgery were calculated in meta-analysis. Trial Sequential Analysis (TSA) was performed to confirm our conclusions and assess the need for future trials.

Results

: Six studies (one randomized controlled trial and five cohort studies) were included for systematic review and meta-analysis. The results showed no significant difference in recurrence between MIT and conventional surgery (RR=0.80; 95% CI, 0.39–1.64; P=0.54; I2=17%), and the results of the subgroup analysis were consistent. The incidence of the overall complications (RR=0.15; 95% CI, 0.05–0.47; P=0.001; I2=0%) and nerve injury (RR=0.22; 95% CI, 0.06-0.82; P=0.02; I2=0%) was significantly lower in MIT than in conventional surgery, but the incidence of bleeding/hematoma presented no significant difference (RR=0.34; 95% CI, 0.06-2.07; P=0.24; I2=0%). The results of TSA suggested that the conclusion of MIT significantly reducing the risk of overall complications was stable; and additional clinical trials were need in the future for confirming the conclusions regarding disease recurrence, nerve injury and bleeding/hematoma.

Conclusion

: For mucoceles in the oral cavity, MIT is less likely to induce complications (i.e., nerve injury) compared with surgical removal, and the control of disease recurrence is comparable to that of conventional surgery. Therefore, the application of MIT for mucoceles could be a promising alternative to conventional surgery when the latter is not applicable.

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