Panjwani Pankaj, Banga Kulvinder, Atram Jatin, Wahjuningrum Dian Agustin, Luke Alexander Maniangat, Shetty Krishna Prasad, Pawar Ajinkya M
Department of Conservative Dentistry and Endodontics, Nair Hospital Dental College, Mumbai, Maharashtra, India.
Department of Conservative Dentistry, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.
PeerJ. 2024 Dec 18;12:e18691. doi: 10.7717/peerj.18691. eCollection 2024.
This study evaluates the fracture resistance of apical plugs created from Biodentine and mineral trioxide aggregate (MTA) in thicknesses of 3 and 5 mm within simulated open apex tooth models.
Fifty human maxillary central incisors were obtained from a pool of freshly extracted teeth. In order to replicate open apices without cavity preparation, ten teeth in the control group received apical-to-coronal preparation with Peeso reamers. The remaining 40 teeth were randomly assigned to four experimental groups and received either 3 or 5 mm Biodentine or MTA apical plugs.
The mean fracture loads observed in this study were as follows: control group, 431.48 N (±34.55); 3 mm MTA, 774.88 N (±62.74); 5 mm MTA, 752.65 N (±73.79); 3 mm Biodentine, 918.25 N (±59.09); and 5 mm Biodentine, 903.42 N (±24.48). Specifically, teeth in the Biodentine group demonstrated considerably stronger fracture resistance compared to those in the MTA group ( < 0.001). However, no significant differences were observed between the 3 and 5 mm thicknesses (MTA: = 0.98, Biodentine: = 0.99), suggesting that plug thickness did not affect fracture resistance within both groups.
Biodentine apical plugs provided the highest fracture resistance among the materials, regardless of thickness.
本研究评估了在模拟的开放根尖牙齿模型中，由生物陶瓷（Biodentine）和三氧化矿物凝聚体（MTA）制成的厚度为3毫米和5毫米的根尖充填物的抗折性。
从一组新鲜拔除的牙齿中获取50颗人类上颌中切牙。为了在不制备洞型的情况下复制开放根尖，对照组的10颗牙齿接受了用Peeso扩孔钻从根尖向冠方的预备。其余40颗牙齿被随机分为四个实验组，分别接受3毫米或5毫米的生物陶瓷或MTA根尖充填物。
本研究中观察到的平均抗折载荷如下：对照组，431.48牛（±34.55）；3毫米MTA，774.88牛（±62.74）；5毫米MTA，752.65牛（±73.79）；3毫米生物陶瓷，918.25牛（±59.09）；5毫米生物陶瓷，903.42牛（±24.48）。具体而言，生物陶瓷组的牙齿显示出比MTA组的牙齿更强的抗折性（<0.001）。然而，在3毫米和5毫米厚度之间未观察到显著差异（MTA： = 0.98，生物陶瓷： = 0.99），这表明充填物厚度在两组中均不影响抗折性。
无论厚度如何，生物陶瓷根尖充填物在这些材料中提供了最高的抗折性。
