Ribeiro A B, Della Vecchia M P, Cunha T R, Sorgini D B, Dos Reis A C, Muglia V A, de Albuquerque R F, de Souza R F
Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
J Oral Rehabil. 2015 Aug;42(8):605-14. doi: 10.1111/joor.12287. Epub 2015 Mar 13.
The retention of removable dentures by mini-implants is a relatively recent treatment modality and may lead to minimal post-operative trauma. This study compared post-operative pain and discomfort following the insertion of mini-implants (two or four) or two standard-size implants for the retention of mandibular overdentures. One hundred and twenty edentulous participants (mean age 59.5 ± 8.5 years) were randomly allocated into three groups according to received treatment: (GI) four mini-implants, (GII) two mini-implants or (GIII) two standard implants. Seven days after implant insertion, patients answered questions (100-mm VAS) relating to pain, swelling, and discomfort with chewing, speech and hygiene, considering their experiences during the 1st and 6th day. Groups were compared by two-way anova (α = 0.05). All participants (GI: 38; GII: 42; GIII: 40) were analysed after 7 days. At the 6th day, GI felt significantly higher pain than GII and GIII. GI also reported more difficulty in performing oral hygiene practices than GIII during the 1st day. There was no significant difference between groups for the other questions and periods. No participant suffered unexpected side effects. The use of four mini-implants induces more intense post-operative pain at the 6th day than the insertion of two mini- or conventional fixtures, as well as more difficult oral hygiene on the 1st day. Clinicaltrials.gov, NCT01411683; FAPESP, 2011/00688-7 and 2011/23347-0.
使用微型种植体固位可摘义齿是一种相对较新的治疗方式，术后创伤可能较小。本研究比较了植入两颗或四颗微型种植体或两颗标准尺寸种植体以固位下颌覆盖义齿后的术后疼痛和不适情况。120名无牙颌参与者（平均年龄59.5±8.5岁）根据接受的治疗被随机分为三组：（GI）四颗微型种植体组，（GII）两颗微型种植体组或（GIII）两颗标准种植体组。种植体植入7天后，患者根据其在第1天和第6天的经历回答有关疼痛、肿胀以及咀嚼、说话和口腔卫生方面不适的问题（100毫米视觉模拟量表）。采用双向方差分析对各组进行比较（α = 0.05）。7天后对所有参与者（GI组：38人；GII组：42人；GIII组：40人）进行分析。在第6天，GI组的疼痛明显高于GII组和GIII组。在第1天，GI组在进行口腔卫生操作时也比GIII组报告有更多困难。在其他问题和时间段上，各组之间没有显著差异。没有参与者出现意外的副作用。与植入两颗微型种植体或传统种植体相比，植入四颗微型种植体在第6天会引起更强烈的术后疼痛，并且在第1天口腔卫生更困难。Clinicaltrials.gov，NCT01411683；圣保罗研究基金会（FAPESP），2011/00688 - 7和2011/23347 - 0。
