Prospective Clinical Study of Zirconia Full-coverage Restorations on Teeth Prepared With Biologically Oriented Preparation Technique on Gingival Health: Results After Two-year Follow-up

Agustín-Panadero, Rubén; Serra-Pastor, Blanca; Fons-Font, Antonio; Solá-Ruíz, MF

doi:10.2341/17-124-c

Cited by 44 publications

(58 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The clinical experience of BOPT reported in the literature has established that this technique increases the thickness of gingival tissue and enhances the stability of the soft tissue in the mediumand long-term compared to other classical preparations with finishing lines [5,7,8] (Figures 16-20). hence, the conclusions of this technique are based on methods that are imprecise and subjective.…”

Section: Discussionmentioning

confidence: 99%

“…The protocol for the manufacture of the provisional prosthesis is of key significance as it determines the new emergence context, placing it at different levels within the gingival sulcus. This allows the surrounding soft tissue to adjust its form and position to accommodate the new prosthetic profile, thereby guiding the healing, the reinsertion, and the thickening of the gingival tissue [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The authors who have published on the BOPT technique have detected a clinical thickening of the gingival tissue and a soft tissue stability improvement around dental restorations [4,7,8], but the measurement mechanisms used by these authors have been subject to variation. It was also noted by these authors that this technique enables gingival tissue to be displaced in an apico-coronal and bucco-lingual direction, thereby modifying the cervical emergence of the tooth-supported prosthesis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Angulation in Cervical Prosthetic Emergences Relative to the Gingival Tissue of Teeth Treated under the Biologically Oriented Preparation Technique (BOPT)

et al. 2020

View full text Add to dashboard Cite

Background: The objective of this study was to digitally evaluate the effect of the cervical emergence of restorations in terms of gingival tissue volume. Materials and methods: In this study, 31 upper front teeth (from canine to canine) were selected and prepared using the biologically oriented preparation technique (BOPT). Each tooth had undergone a change in its provisional process with different emergence profile angles: 30° and 60°. Each sample was digitalised (STL file) using an intraoral scanner. By using various pieces of manipulation software for STL files, a volumetric analysis protocol was carried out. Changes in gingival thickness and position were measured at the buccal and the lingual positions. Results: By increasing the angulation of the emergence profile to 60°, the gingival thickness increased by 0.255 ± 0.381 mm (p = 0.001; t-test) at buccal and by 0.038 ± 0.381 mm at lingual (p = 0.600; t-test). In relation to the gingival height, at buccal, there is an apical displacement of 0.262 ± 0.246 mm (p = 0.001; t-test), and at lingual, there is an apical displacement of 0.390 ± 0.279 mm (p = 0.001; t-test). It was shown that an increase in the provisional emergence profile angle significantly diminishes the gingival height while significantly increasing gingival thickness. The Pearson’s correlation coefficient, r = 0.636, was moderately high and significant (p = 0.001; Pearson). Conclusions: The soft tissue surrounding the BOPT restored tooth evolved according to the prosthetic emergence angle of the provisional restoration, enabling us to plan for an apico-coronal and bucco-lingual displacement of the gingival tissue prior to the definitive restoration.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Angulation in Cervical Prosthetic Emergences Relative to the Gingival Tissue of Teeth Treated under the Biologically Oriented Preparation Technique (BOPT)

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The tooth reduced by BOPT does not have a finish line (nor is it a knife-edge finish line), as the finish line is defined by the edge of the prosthetic restoration and is characterized by contouring the crown in the cervical area in relation to periodontal parameters. Although BOPT is a fairly recent development, several short-medium term prospective studies have reported good perio-prosthetic clinical behavior, observing stability of the gingival margin, and increased gingival thickness in the area of prosthetic emergence, which is the main factor of concern to restorative dentists ( 3 , 5 ).…”

Section: Discussionmentioning

confidence: 99%

“…Research conducted to date vouches for good periodontal behavior around teeth prepared by BOPT, and for the stability of peri-coronal soft tissues ( 3 ). In BOPT, both the tooth and the gingiva are drilled, creating an axial plane by means of vertical tooth reduction.…”

Section: Introductionmentioning

confidence: 99%

Histological study of human periodontal tissue following biologically oriented preparation technique (BOPT)

et al. 2020

View full text Add to dashboard Cite

Background 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). Material and Methods This 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. Results Structural 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. Conclusions Biologically oriented preparation technique is a reliable alternative to conventional horizontal finish lines. Key words: Vertical preparation, prosthetic cementoenamel junction (PCEJ), finish line, BOPT, crown.

show abstract

Restorative Alveolar Interface Management Combined With Tunnel Technique and Connective Tissue Graft: A Conservative Approach for Root Fracture Treatment

Perussolo

Kawanichi

Makropoulos

et al. 2020

Clin Adv Periodontics

View full text Add to dashboard Cite

Introduction The infringement of supracrestal tissue attachment by subgingival restorative margins, extensive caries, and root fractures, can compromise the periodontal health, resulting in inflammation and loss of periodontal supporting tissues. This report describes a case of a root fracture on the upper left central incisor that was successfully treated using a conservative approach, by applying the restorative alveolar interface (RAI) management combined with tunnel technique and a subepithelial connective tissue graft (SCTG). Case Presentation A 24‐year‐old male patient presented with a provisional single‐unit fixed prosthesis on his upper left central incisor, in function for 4 years, with the chief complaint of prosthesis discoloration. After clinical and radiographic examination, a diagnosis of root fracture was established. Following the removal of the provisional prosthesis, a full‐thickness flap was elevated creating a tunnel. The elimination of the fracture line/angle, root recontouring, and planning was then performed with the aid of a conical long diamond bur and periodontal curets. Additionally, an SCTG was placed buccally into the tunnel. The final zirconia layered with E‐max crown was placed 6 months after surgery. At 12‐ and 24‐month follow‐up, the periodontal tissues presented healthy aspect, no bleeding on probing, and a 4‐mm probing depth. Conclusions Surgical repositioning of the restorative margin can be an alternative and conservative treatment approach to compromised teeth with subgingival fracture line/angle. However, case selection should be carefully considered and restorability assessed as limitations might apply.

show abstract

Prospective Clinical Study of Zirconia Full-coverage Restorations on Teeth Prepared With Biologically Oriented Preparation Technique on Gingival Health: Results After Two-year Follow-up

Abstract: Two years after treatment, vertical preparation without finish line produces gingival thickening, margin stability, and optimal esthetics. Neither crowns nor FPDs presented any mechanical complications.

Cited by 44 publications

References 12 publications

Influence of Angulation in Cervical Prosthetic Emergences Relative to the Gingival Tissue of Teeth Treated under the Biologically Oriented Preparation Technique (BOPT)

Influence of Angulation in Cervical Prosthetic Emergences Relative to the Gingival Tissue of Teeth Treated under the Biologically Oriented Preparation Technique (BOPT)

Histological study of human periodontal tissue following biologically oriented preparation technique (BOPT)

Restorative Alveolar Interface Management Combined With Tunnel Technique and Connective Tissue Graft: A Conservative Approach for Root Fracture Treatment

Contact Info

Product

Resources

About