Alqutaibi Ahmed Yaseen, Alnazzawi Ahmad A, Farghal Ahmed E, Bakr Ramy M, Mahmoud Ihab Ismail
Substitutive Dental Sciences Department, College of Dentistry, Taibah University, Al Madinah 41311, Saudi Arabia.
Prosthodontics Department, College of Dentistry, Ibb University, Ibb 70270, Yemen.
J Clin Med. 2023 Mar 6;12(5):2073. doi: 10.3390/jcm12052073.
This rerandomized clinical trial evaluated the influence of soft liners (SL) on biting force, pain perception, and the oral health-related quality of life (OHRQoL) of complete denture wearers. Twenty-eight completely edentulous patients complaining of ill-fitting lower complete dentures were selected to participate in the study from the Dental Hospital, College of Dentistry, Taibah University. All patients received new complete maxillary and mandibular dentures; then they were randomly divided into two groups (14 patients in each group): the acrylic-based SL group, in which the mandibular denture was lined with an acrylic-based soft liner, and the silicone-based SL group, in which the mandibular denture was lined with a silicone-based soft liner. OHRQoL and maximum bite force (MBF) were assessed in this study before denture relining (baseline), then at one month and three months after relining. The finding showed that both treatment modalities significantly improved the OHRQoL of included patients at one-month and three-month periods compared to baseline records (i.e., dentures before relining) with a statistically significant difference ( < 0.05). However, there is no statistical difference between groups at the baseline, one-, and three-month follow-up periods. Regarding maximum biting force, when acrylic-based SL is compared to silicone-based SL, there is no statistical difference between groups at baseline (75 ± 31 and 83 ± 32 N) and one-month follow-up periods (145 ± 53 and 156 ± 49 N); however, after three months of function, the silicone-based group recorded 166 ± 57 N statistically significant high biting force compared to the acrylic-based group that recorded 116 ± 47 N ( < 0.05). Permanent soft denture liners positively affect maximum biting force, pain perception, and OHRQoL more than conventional dentures. After three months, silicone-based SL outperformed acrylic-based soft liners in maximum biting force, which may indicate better long-term results.
这项重新随机化的临床试验评估了软衬垫（SL）对全口义齿佩戴者咬合力、疼痛感知以及口腔健康相关生活质量（OHRQoL）的影响。从泰巴大学牙科学院牙科医院选取了28名抱怨下颌全口义齿不合适的无牙患者参与该研究。所有患者均佩戴了新的上颌和下颌全口义齿；然后将他们随机分为两组（每组14名患者）：丙烯酸基软衬垫组，其下颌义齿衬有丙烯酸基软衬垫；硅酮基软衬垫组，其下颌义齿衬有硅酮基软衬垫。在本研究中，在义齿重衬前（基线）、重衬后1个月和3个月评估OHRQoL和最大咬合力（MBF）。研究结果表明，与基线记录（即重衬前的义齿）相比，两种治疗方式在1个月和3个月时均显著改善了纳入患者的OHRQoL，差异具有统计学意义（<0.05）。然而，在基线、1个月和3个月的随访期，两组之间没有统计学差异。关于最大咬合力，当将丙烯酸基SL与硅酮基SL进行比较时，在基线（75±31和83±32 N）和1个月随访期（145±53和156±49 N）两组之间没有统计学差异；然而，在功能使用3个月后，硅酮基组记录的咬合力为166±57 N，与记录为116±47 N的丙烯酸基组相比具有统计学意义的高咬合力（<0.05）。永久性软质义齿衬垫比传统义齿对最大咬合力、疼痛感知和OHRQoL有更积极的影响。3个月后，硅酮基SL在最大咬合力方面优于丙烯酸基软衬垫，这可能表明长期效果更好。
