Abstract
BackgroundThe aim of this study was to conduct histological analysis of a human tooth resected with the periodontal insertion apparatus intact following treatment using biologically oriented preparation technique (BOPT). Material and MethodsThis descriptive histological dento-periodontal study used an anterior tooth extracted with the surrounding periodontal tissues intact, following prosthetic restoration with BOPT. The sample patient was recruited from among those attending the Department of Dental Medicine at the Faculty of Medicine and Dentistry, University of Valencia (Spain). Eight serial sections of the restored tooth were processed. The relative location and histological characteristics of the cemented prosthetic crown, the dental tissues of the tooth prepared by BOPT technique, and the periodontal tissues were analyzed. ResultsStructural analysis of the neoformed junctional epithelium showed that the number of layers decrease apically until there was a single row of cells perfectly adhered to the acellular cementum, and beneath the epithelium a connective tissue evidently free from inflammation. The tissues of the neoformed periodontium (gingival ligament, sulcular epithelium, junctional epithelium) presented histologic normality. ConclusionsBiologically oriented preparation technique is a reliable alternative to conventional horizontal finish lines. Key words:Vertical preparation, prosthetic cementoenamel junction (PCEJ), finish line, BOPT, crown.
Highlights
Tooth preparation technique without finish line, known as biologically oriented preparation technique (BOPT), is a protocol in which the emergence of the tooth crown is eliminated above its cemento-enamel junction (CEJ) using diamond burs [1]
The relative location and histological characteristics of the cemented prosthetic crown, the dental tissues of the tooth prepared by BOPT technique, and the periodontal tissues were analyzed
The newly formed junctional epithelium attached to the new dentin-cementum surface created after BOPT reached from the bottom of the gingival sulcus to a variable height depending on the serial section studied
Summary
Tooth preparation technique without finish line, known as biologically oriented preparation technique (BOPT), is a protocol in which the emergence of the tooth crown is eliminated above its cemento-enamel junction (CEJ) using diamond burs [1] This makes it possible to create a prosthetic anatomical full coverage crown that will help periodontal tissues to structure themselves and stabilize around the cervical area [2]. The aim of this study was to conduct histological analysis of a human tooth resected with the periodontal insertion apparatus intact following treatment using BOPT. The aim of this study was to conduct histological analysis of a human tooth resected with the periodontal insertion apparatus intact following treatment using biologically oriented preparation technique (BOPT). Conclusions: Biologically oriented preparation technique is a reliable alternative to conventional horizontal finish lines
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
