Periodontal and prosthetic outcomes on teeth prepared with biologically oriented preparation technique: a 4-year follow-up prospective clinical study

Serra-Pastor, Blanca; Loi, Ignazio; Fons-Font, Antonio; Solá-Ruíz, Maria Fernanda; Agustín-Panadero, Rubén

doi:10.1016/j.jpor.2019.03.006

Cited by 43 publications

(78 citation statements)

References 22 publications

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“…The less experienced one, on the other hand, risks producing a series of restorations with a very poor marginal closure, with all the related negative consequences for the patient (sensitivity, infiltration, secondary caries of the abutments) [18,19]. Recently, great success has been achieved with a new type of prosthetic preparation, the biologically oriented preparation technique (BOPT) [30][31][32]. This preparation has spread widely, and many dentists have adopted it as the preferred way to prepare the natural abutments, with the intention of simplifying the preparation protocols.…”

Section: Discussionmentioning

confidence: 99%

“…This preparation has spread widely, and many dentists have adopted it as the preferred way to prepare the natural abutments, with the intention of simplifying the preparation protocols. The BOPT concept represents a development of the old vertical preparation, which was used on periodontally compromised teeth with an open-flap procedure, in order to preserve dental tissue [30][31][32]. Nowadays, there are clinicians who suggest to always adopt vertical preparation with digital workflows, and specifically with IOS.…”

Section: Discussionmentioning

confidence: 99%

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An Experimental Strategy for Capturing the Margins of Prepared Single Teeth with an Intraoral Scanner: A Prospective Clinical Study on 30 Patients

Mangano

Margiani

Солоп

et al. 2020

IJERPH

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Purpose: To present an experimental strategy for successfully capturing the margins of prepared single teeth with an intraoral scanner (IOS). Methods: The protocol was as follows: (1) an intraoral impression was captured with an IOS, without taking care of the visibility of the margins; (2) a partial analog impression was taken by means of a 3D-printed custom tray filled with polyvinylsiloxane light, after the removal of a retraction cord; (3) the hollow portion of the analog impression, with the preparation margins clearly visible, was scanned extraorally with the same IOS; (4) the scan of the analog impression was imported into computer-assisted-design (CAD) software, where its normals were inverted; (5) the scan with inverted normals was registered on the first intraoral scan, and replaced it; (6) the technician designed the final restoration, which was fabricated and delivered for application. The study outcomes were: (1) the marginal adaptation of the final crown; (2) the quality of interproximal contacts; and (3) the quality of occlusal contacts. Results: Thirty patients (18 males, 12 females; mean age 51.3 ± 11.6 years) were selected for this study. All these patients were restored with a monolithic translucent zirconia crown, fabricated following the aforementioned protocol. The clinical precision and the marginal adaptation of the crowns were optimal, interproximal contact points were perfect, and the only necessary adaptations were occlusal, with some minor precontacts that had to be polished. Conclusions: The present protocol seems to be compatible with the fabrication of clinically precise zirconia crowns. Further studies are needed to confirm these results.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

An Experimental Strategy for Capturing the Margins of Prepared Single Teeth with an Intraoral Scanner: A Prospective Clinical Study on 30 Patients

Mangano

Margiani

Солоп

et al. 2020

IJERPH

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“…• Permanent restoration using a composite material with the insertion of an endodontic fiber post (7,8,9). • Prosthetic preparation of the tooth with the BOPT technique and the placement of a temporary crown (10,11). • Placement of the definitive crown in a material that will be suitable for a new clinical situation dodontskim liječenjem, veličina buduće restauracije, potreba za intrakanalnom nadogradnjom i protetičkom rehabilitacijom, položaj koštanoga grebena, duljina korijena, stanje susjednih zuba, oralna higijena i pacijentova suradnja te cijena.…”

Section: Case Reportunclassified

“…After the restoration, the tooth was prepared with the B.O.P.T technique and a provisional crown in PMMA, obtained with an optical scan done before the preparation of the element with a AADVA IOS100 scanner (GC Corp, Tokyo, Japan), was placed. During this phase the old restorations of the teeth 24 and 26 were replaced (Figures 4-5), (10,11).…”

Section: Operational Phasesmentioning

confidence: 99%

Single Tooth Prosthetic Restoration Through Surgical Crown Lengthening, Conservative Therapies and CAD-CAM Milled Restoration in Lithium-Disilicate: A Case Report

Maria¹,

Vitelli²,

Dian³

et al. 2019

Acta Stomatol Croat

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Protetička restauracija pojedinačnog zuba kirurškim produljenjem krune, konzervativnom terapijom i litijevim disilikatnim nadomjestkom proizvedenim CAD-CAM tehnologijom: prikaz slučaja UvodRestauracija znatno oštećenog zuba često zahtijeva interdisciplinarni pristup. Na primjer, od kliničara se može zahtijevati rekonstrukcija estetike i funkcije gornjeg pretkutnjaka, no pritom estetski zahtjevi i žvačno opterećenje često utječu na izbor postupaka i materijala, pa čak i na opću prognozu zuba.U ovom slučaju nekoliko je čimbenika o kojima treba voditi računa -to su položaj i veličina kaviteta, potreba za en-Abstract Objective. The restorative treatment of a decayed, non-vital upper premolar often requires an interdisciplinary approach. Esthetics and the entity of the masticatory loads are usually affecting the choice of procedures and materials. A conservative treatment in a case with esthetic needs and functional requirements is investigated in this case report. Materials and methods. A case of a 45-yearold woman with a severely decayed upper premolar is presented. The tooth has been previously treated in an emergency department with a provisional endodontic medication, but a further treatment has been then performed. The tooth was painful at the moment of the visit and the carious lesion appeared to invade the subgingival level. A surgical-conservative approach has been selected involving crown lengthening, endodontic treatment and a prosthetic crown with a monolithic Lithium-Silicate. Results. The rehabilitative process required 3 months, including maturation times after surgery and the placement of the provisional crown. The patient claimed to be both esthetically and functionally satisfied with the restoration. Conclusion. A conservative treatment of a severely involved tooth requires a critical evaluation of the remaining structures and a precise selection of the restorative materials. A monolithic crown could represent an ideal solution for restoring an upper premolar requiring esthetics and solid function, but the choice of a high translucent, easily polishable and possibly even chair-side prosthetic material might be an appreciable added value for clinicians.

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“…This problem is largely associated with the iatrogenic effects produced during dental preparation or as a result of a poor prosthetic fit; it will compromise esthetics, and thus is particularly detrimental in the anterior region. Subgingival horizontal preparations have been conventionally indicated in cases of aesthetic demand; however, they are related to adverse periodontal reactions, such as inflammation, bleeding, deeper probing, and recession [4].…”

Section: Introductionmentioning

confidence: 99%

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

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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.

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Periodontal and prosthetic outcomes on teeth prepared with biologically oriented preparation technique: a 4-year follow-up prospective clinical study

Cited by 43 publications

References 22 publications

An Experimental Strategy for Capturing the Margins of Prepared Single Teeth with an Intraoral Scanner: A Prospective Clinical Study on 30 Patients

An Experimental Strategy for Capturing the Margins of Prepared Single Teeth with an Intraoral Scanner: A Prospective Clinical Study on 30 Patients

Single Tooth Prosthetic Restoration Through Surgical Crown Lengthening, Conservative Therapies and CAD-CAM Milled Restoration in Lithium-Disilicate: A Case Report

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

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