Grewal Navneet, Salhan Rubica, Kaur Nirapjeet, Patel Hemal Bipin
Department of Pedodontics and Preventive Dentistry, Punjab Government Dental College and Hospital, Amritsar, Punjab, India.
Contemp Clin Dent. 2016 Oct-Dec;7(4):457-463. doi: 10.4103/0976-237X.194116.
Considering the biological concerns of calcium hydroxide (CH) as a pulpotomy agent, an alternative silicate based dentin substitute i.e. Biodentine (CaSiO) was evaluated clinically and radiographically.
To evaluate the effectiveness of dentin substitute (Biodentine) in regenerative pulpotomy of vital primary teeth that would giv a biological base to its use in forming reactive dentin bridge and overcoming the drawbacks of calcium hydroxide.
Randomised clinical trial on 40 bilateral carious primary molars in 20 participant children (aged 5-10 years) was carried out by same operator using CaSiO(group-1) and CH (group-2) as vital pulpotomy agents. Blinded clinical and radiographic outcomes were observed at 3, 6 and 12 months interval.
Clinical outcomes of both protocols were analysed using Pearson's chi-square test applied at < 0.05. Descriptive statistics were expressed as mean increase in dentin bridge formation in mms from two reference points in standardized radiographs using paired ''- test at baseline and 12 months and found to be statistically significant ( < 0.05) in group-1 when compared with group-2.
Group-1 revealed statistically favourable regenerative potential along with clinical success compared to group 2 thereby sharing both indications and mode of action with CH, but without its drawbacks of physical and clinical properties.
鉴于氢氧化钙(CH)作为一种牙髓切断术药物存在生物学方面的问题,对一种替代性的基于硅酸盐的牙本质替代物即生物活性玻璃(CaSiO)进行了临床和影像学评估。
评估牙本质替代物(生物活性玻璃)在活髓乳牙再生性牙髓切断术中的有效性,这将为其用于形成反应性牙本质桥以及克服氢氧化钙的缺点提供生物学基础。
由同一名操作者对20名受试儿童(年龄5 - 10岁)的40颗双侧龋坏乳磨牙进行随机临床试验,使用生物活性玻璃(第1组)和氢氧化钙(第2组)作为活髓切断术药物。在3、6和12个月的间隔时间观察盲法临床和影像学结果。
两种方案的临床结果使用Pearson卡方检验进行分析,检验水准设定为<0.05。描述性统计以标准化X线片上两个参考点牙本质桥形成的平均增加毫米数表示,在基线和12个月时使用配对t检验,结果显示第1组与第2组相比差异有统计学意义(<0.05)。
与第2组相比,第1组在统计学上显示出有利的再生潜力以及临床成功,因此与氢氧化钙具有相同的适应证和作用方式,但没有其物理和临床特性方面的缺点。