Assessment of a Cavity to Optimize Ultrasonic Efficiency to Remove Intraradicular Posts

超声波传感器 材料科学 超声波 冠状面 芯(光纤) 口腔 牙科 生物医学工程 复合材料 医学 解剖 放射科
作者
Izabela Araujo Aguiar Graça,Emílio Carlos Sponchiado Júnior,André Augusto Franco Marques,Leandro de Moura Martins,Ângela Delfina Bittencourt Garrido
出处
期刊:Journal of Endodontics [Elsevier BV]
卷期号:43 (8): 1350-1353
标识
DOI:10.1016/j.joen.2017.03.028
摘要

Introduction The study assessed an in vitro protocol for the removal of cast metal posts using ultrasonic vibration in multirooted teeth by drilling a cavity in the coronal portion of the post followed by ultrasound application in the cavity. Method Forty endodontically treated molars received intraradicular cast posts and were divided into 4 groups according to the removal protocol: the control group, no cavity and no ultrasonic vibration; the ultrasonic group, no cavity and ultrasonic vibration in the coronal portion of the core; the cavity group, a cavity in the core and no ultrasonic vibration; and the cavity ultrasonic group, a cavity in the core and ultrasonic vibration inside the cavity. The traction test was performed on all samples using a universal testing machine (EMIC DL-2000; EMIC Equipamentos e Sistemas de Ensaio LTDA, São José dos Pinhais, PR, Brazil) at a speed of 1 mm/min, obtaining values in Newtons. The data were statistically analyzed using analysis of variance and the Tukey-Kramer test (P < .05). Results The results showed statistically significant differences between the tested groups (control group = 322.74 N, ultrasonic group = 283.09 N, cavity group = 244.00 N, and cavity ultrasonic group = 237.69 N). The lowest mean strength was found in the group that received ultrasonic vibration inside the cavity. Conclusions Preparing a cavity in the coronal core followed by ultrasonic vibration reduces the traction force required for removal. The removal protocol was effective for removing posts in multirooted teeth cemented with zinc phosphate.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
爆米花应助比巴卜采纳,获得10
刚刚
量子星尘发布了新的文献求助10
刚刚
3秒前
翁雁丝完成签到 ,获得积分10
3秒前
李繁蕊发布了新的文献求助10
4秒前
田様应助王玉河采纳,获得10
4秒前
6秒前
Philiadddd完成签到,获得积分10
6秒前
安超楷发布了新的文献求助10
7秒前
烟花应助55555555采纳,获得10
7秒前
8秒前
霍元正发布了新的文献求助10
9秒前
12214完成签到,获得积分10
9秒前
心灵美金毛完成签到,获得积分10
9秒前
fc小肥杨发布了新的文献求助10
11秒前
13秒前
14秒前
今后应助彳亍者采纳,获得10
14秒前
赘婿应助Fairyvivi采纳,获得10
15秒前
16秒前
wangyi邮箱完成签到,获得积分10
17秒前
17秒前
17秒前
17秒前
minisword发布了新的文献求助30
18秒前
研友_8op5gL发布了新的文献求助10
18秒前
香蕉觅云应助翁雁丝采纳,获得10
19秒前
李健应助live采纳,获得10
19秒前
FunHigh发布了新的文献求助10
20秒前
王玉河发布了新的文献求助10
20秒前
魏家乐发布了新的文献求助10
20秒前
wu完成签到 ,获得积分10
21秒前
美好雨竹完成签到 ,获得积分10
21秒前
啊啊发布了新的文献求助10
21秒前
CodeCraft应助曹小仙男采纳,获得10
21秒前
研友_VZG7GZ应助霍元正采纳,获得30
21秒前
21秒前
星辰大海应助呱gua采纳,获得10
22秒前
醒醒发布了新的文献求助10
22秒前
星辰大海应助澡雪采纳,获得10
22秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975814
求助须知:如何正确求助?哪些是违规求助? 3520123
关于积分的说明 11201020
捐赠科研通 3256502
什么是DOI,文献DOI怎么找? 1798347
邀请新用户注册赠送积分活动 877523
科研通“疑难数据库(出版商)”最低求助积分说明 806417