Occlusal and masticatory aspects after application of Hall technique and conventional SSC – an 8 weeks comparative cohort study

Abstract

Abstract Objectives By comparing the differences between Hall technique and traditional preformed mental crowns(PMC) in the treatment of extensive caries, this paper aims to investigate the treatment efficacy of Hall technique. Materials and Methods ①Chlidren who needed metal crown restoration due to caries of mandibular deciduous molars, were selected. Oral dates were measured and analyzed in pre-op, post-op,2wk post-op, 4wk post-op and 8wk post-op.②Rebuild and compare the treatment modules through three-dimensional finite element analysis. Results ①There were 21 (12males and 9 females) in the Hall technique group and 22(15 males and 7 females) in the traditional PMC group. All data with Hall technique changed immediately after operation, and returned to the preoperative level at 2wk post-op and 4wk post-op (P > 0.05). ②In treatment modules, the maximum stress value of Hall technique module increased immediately, and returned to the preoperative level. Conclusion After the Hall technique treatment, the occlusal state will gradually return to the preoperative state in about 2–4 weeks. The occlusal and masticatory prognosis is not significantly different from that of the traditional PMC technique. Clinical Relevance: This investigation demonstrates Hall technique’s safety in periodontitis and temporomandibular joint and effectiveness stopping caries developing. Registration number: ChiCTR2100046097