Prakash Poonam, Singh Kirandeep, Bahri Rahul, Bhandari S K
Department of Dental Surgery and Oral Health Sciences, Armed Forces Medical College, Pune, Maharashtra, India.
J Indian Prosthodont Soc. 2020 Jul-Sep;20(3):237-243. doi: 10.4103/jips.jips_402_19. Epub 2020 Jul 17.
The aim of this review was to investigate utility or futility of facebow for fabrication of complete denture prosthesis to maximise clinical efficiency and acceptability of complete dentures.
Systematic review following PRISMA guidelines.
A study question was designed based on PICOT model which was used to evaluate whether facebow transfer is required or not for fabrication of complete denture prosthesis. An extensive search was carried out manually and using electronic databases such as PubMed-Medline, Cochrane, Google Scholar, and Clinicaltrials.gov. Parameters under review included patient satisfaction, masticatory efficiency, occlusal adjustments, clinician time, stability and retention. Boolean operators, MeSH terms and limiters were applied to develop the search and reach to conclusive studies pertaining to study design. Literature dated between 1950 and 2019 were selected. The data extraction and assessment of the studies was done by two independent investigators.
No meta-analysis was conducted due to heterogeneity of data obtained.
13690 studies were shortlisted, 13672 were excluded based on title and abstract. By the end of search phase, 07 RCTs were considered relevant. 04 studies concluded comparable/ no differences in outcome with and without use of facebow for fabrication of complete denture prostheses, whereas 03 studies concluded better results without the use of facebow.
The use of facebow results in fabrication of complete denture prostheses with similar results in terms of clinical efficiency and patient acceptability as compared to simplified techniques using anatomical landmarks. Variations in assessment criteria, non uniform distribution of sample size amongst different clinical trials and subjective questionnaire based criteria are the weaker links in the review. Extensive research and long term standardised studies with objective criteria for assessment are required for comprehensive and conclusive results to establish the need for change in clinical practice.
本综述旨在研究面弓在全口义齿修复体制作中的效用或无用性，以最大限度地提高全口义齿的临床效率和可接受性。
遵循PRISMA指南进行系统综述。
基于PICOT模型设计了一个研究问题，用于评估制作全口义齿修复体时是否需要面弓转移。通过手动检索以及使用电子数据库（如PubMed-Medline、Cochrane、谷歌学术和Clinicaltrials.gov）进行了广泛的搜索。审查的参数包括患者满意度、咀嚼效率、咬合调整、临床医生时间、稳定性和固位。应用布尔运算符、医学主题词和限定词来开展搜索，并找到与研究设计相关的结论性研究。选取了1950年至2019年间的文献。由两名独立研究人员进行研究的数据提取和评估。
由于获得的数据存在异质性，未进行荟萃分析。
筛选出13690项研究，根据标题和摘要排除了13672项。在搜索阶段结束时，有7项随机对照试验被认为相关。4项研究得出结论，制作全口义齿修复体时使用面弓和不使用面弓在结果上具有可比性/无差异，而3项研究得出结论，不使用面弓时效果更好。
与使用解剖标志的简化技术相比，使用面弓制作全口义齿修复体在临床效率和患者可接受性方面产生的结果相似。评估标准的差异、不同临床试验中样本量的不均匀分布以及基于主观问卷的标准是本综述中的薄弱环节。需要进行广泛的研究和长期标准化研究，并采用客观的评估标准，以获得全面和结论性的结果，从而确定临床实践中是否需要改变。
