Technique to restore the midline space of central incisors using a two-in-one template: A clinical report

Using composite resin restoration of full-coverage crowns to obtain a completely symmetrical esthetic restoration of individual central incisors remains difficult. Freehand direct composite resin restoration is challenging even for highly skilled dentists. This clinical report describes a digital protocol for achieving symmetrical restoration of two central incisors using a custom-designed, two-in-one template.     

Post placement and restoration of endodontically treated teeth: a literature review

The restoration of endodontically treated teeth is a topic that is extensively studied and yet remains controversial from many perspectives. This article reviews the major pertinent literature on this topic, with an emphasis on major decision-making elements in post placement and restoration of endodontically treated teeth. Recommendations are made for treatment planning, materials, and clinical practices from restorative and endodontic perspectives.     

A technique for repairing a loosening abutment screw for a cement-retained implant prosthesis

Prostheses may be attached to implants or implant abutments using screw retention or cementation. With the increased use of cement-retained, implant-supported restorations for the replacement of missing teeth, clinicians may choose to use a definitive cement to lute the definitive restoration. Loosening of an abutment screw is a challenging complication of cement-retained, implant-supported prosthetic restorations. Often, the abutment screw becomes loose from the implant body, whereas the crown remains cemented to the abutment. In such situations, separating the cemented crown from the underlying abutment or locating the abutment-screw access for removal of the restoration is a difficult task. The purpose of this report is to describe a simple technique for locating the abutment-screw access in the event of its loosening. The advantage of this technique is that it can facilitate easy location of the abutment screw, thus minimizing damage to the existing restoration and allowing it to be reused.     

Incomplete tooth fracture following root-canal treatment: a case report

AIM: To demonstrate the need for proper restoration of root-filled teeth. SUMMARY: Tooth fracture can be a sequel to root-canal treatment. It is associated with the removal of excessive amounts of the tooth substance during the instrumentation phase, the use of unnecessary force during obturation, or inadequate planning of the design of the eventual coronal restoration to include appropriate cuspal protection. Rarely, a fracture may be present in a tooth before treatment commences, but remains undetected. A case describing incomplete vertical tooth fracture of a root-filled mandibular first molar is presented.     

Full‐Arch Implant‐Supported Rehabilitation Guided by a Predicted Lateral Profile of Soft Tissue

In full‐arch implant‐supported rehabilitation of patients with severe periodontitis, prediction of lateral facial profile with modified dental position remains a challenge, especially for patients with protruded anterior teeth. This clinical report describes a digital workflow to predict lateral profiles and then guide the implant placement and restoration fabrication.     

The controlled placement and delayed polymerization technique for the direct Class 2 posterior composite restoration

Adhesion dentistry and its application to the direct posterior composite restoration is the most controversial topic in dentistry today. The concepts behind this procedure are now the backbone of restorative dentistry. Adhesion dentistry influences basic fillings, crown buildups, post-and-core restorations, cementation, orthodontics, and endodontics. Yet, controversy remains about the correct way to place a direct Class 2 posterior composite restoration. This article will examine the scientific evidence to determine which materials and placement techniques will achieve the optimum direct Class 2 posterior composite restoration at or below the cementoenamel junction using the controlled placement and delayed polymerization technique.     

Rehabilitation of esthetics in advanced periodontal cases using orthodontics for vertical hard and soft tissue regeneration prior to implants - a report of 2 challenging cases treated with an interdisciplinary approach

The esthetic rehabilitation of advanced periodontal cases remains a challenge, despite the numerous advances in treatment of periodontitis and regenerative therapies. Whilst understanding of periodontal diseases deepens with advances in cell biology, cell signaling, and genomic research, the restoration of the gingival tissues to anatomical norms remains a considerable challenge in advanced cases. The improvements in diagnosis and treatment of disease certainly enable successful management of disease and stabilization of the compromised and failing dentition. Nonetheless, effective "esthetic" rehabilitation of patients with advanced disease affecting teeth in the esthetic zone, where significant asymmetrical bone loss and tissue recession are present, still constitutes a significant dilemma. An interdisciplinary approach involving vertical augmentation of bone and soft tissues by means of orthodontic extrusion of severely compromised periodontally involved teeth to reconstitute esthetics, as well as ideal bone and soft tissue volume prior to immediate implant placement and restoration, may be a particularly useful treatment option in patients suffering advanced periodontal disease with asymmetrical bone and tissue loss in the esthetic zone. This paper discusses the concepts and illustrates its use in two complex and demanding cases.     

口腔种植体颈部骨吸收和平台转换设计的研究进展

两段式种植体修复1年后种植体-基桩界面即种植体颈部骨吸收约1.5～2mm已被作为种植成功标准之一,但骨吸收的具体机制尚未明确。平台转换设计应用于种植体修复后可显著减少种植体颈部骨吸收。本文就该领域的研究进展进行综述。     

Treatment planning of implants in the aesthetic zone

Aesthetic restoration of anterior teeth with implant supported restorations is one of the most difficult procedures to execute. Bone resorption following anterior tooth extraction often compromises gingival tissue levels for the implant restoration. In the last 10 years the focus has shifted from osseointegration, to creation of an implant borne restoration which is in harmony with the surrounding hard and soft tissue. Complete reconstruction of tooth and gingival related aesthetics remains the primary objective and in some instances can be very difficult to achieve.     

Restoring dentate appearance: a literature review for modern complete denture esthetics

Despite the fact that solutions to functional and comfort problems are often available, successfully restoring the appearance of an edentulous patient remains a challenge. This review of the literature demonstrates the limited amount of useful evidence-based information available for restoration of dentate appearance in edentulous individuals. The English language peer-reviewed literature from 1880 to the present was reviewed. Articles were identified through previous literature reviews, an extensive hand search, and a search of MEDLINE using the key words esthetics and denture esthetics. Three main areas of information were found: published guidelines for achieving natural appearance, patient preference studies, and studies that have collected and analyzed anatomic norms.     

The use of dental amalgam in pediatric dentistry: review of the literature

Dental amalgam is widely used as a restorative material even though it is not esthetic and there has been extensive anti-amalgam rhetoric. Although other materials have improved greatly, amalgam has the proven safety record and best cost-to-benefit ratio. Clinical evidence indicates that, in the posterior permanent dentition--where esthetics is not a primary concern--the small, minimally prepared, amalgam restoration, with its margins and any caries-susceptible fissures sealed with resin fissure sealant, is the restoration with the best survival. Amalgam also remains the best direct restorative option when larger restorations are required. In the primary dentition, the data indicates that resin-based composite and resin-modified glass-ionomer serve very well.     

Construction of a post and core to fit a completed restoration.

A simple technique to fabricate a post and core to fit a completed restoration is described. This technique saves the time and effort of remaking the restoration when endodontic treatment and reinforcement of the tooth are required after construction of the restoration.     

An 8-year follow-up of a fractured endodontically treated incisor restored with a modified laminate veneer.

This clinical report describes the restoration of a left maxillary first incisor using an all-ceramic one-piece coronal post and a laminate veneer feature. This proposed restoration technique represents an alternative to traditional restoration procedures such as metal-ceramic restorations, all ceramic crowns and porcelain laminate veneers. This restoration preserves the remaining tooth structure, re-establishes function and offers good esthetic results.     

Bilateral Pedicled Nasolabial Flaps for the Anterior Alveolus Mandibular Defect: a Review

With the increasingly wide spread application of microvascular free tissue transfer technique for oral cavity reconstruction, the routine need for variety of local and regional flap has decreased. However, a number of such flaps remains quite useful and should be included in modern armamentarium of reconstructive surgeon. Nasolabial flap is versatile, simple, easy to harvest local flap that can cover a variety of defect in face. We present the success and utility of bilateral pedicled flap for reconstruction of mandibular anterior alveolus after the wide excision of squamous cell carcinoma of mandibular anterior alveolus. And the restoration of esthetics and functional dental health with the artificial prosthesis. Patient had been followed for two years and six month with no signs of recurrence as yet.     

Provisional restoration for a patient with cleft lip and palate: a clinical report

A method for designing and fitting a provisional restoration for a patient with a cleft lip and palate was described. The provisional prosthesis provides an alternative treatment option that allows the dentist to plan the definitive restoration while providing the patient with a temporary but esthetic and functional restoration.     

Fabricating a provisional restoration for a 2-stage, single-tooth implant with less than optimal angulation

A technique is presented for fabricating a provisional restoration for a buccally angulated implant. This technique describes the fabrication of a provisional restoration for a labially angulated implant. This technique helps the prosthodontists to achieve esthetics and soft-tissue health until the definitive restoration is available.     

Achieving a Desired Esthetic Outcome for a Single‐Tooth Implant Restoration with Tissue Excess Using a Multidisciplinary Treatment Approach: A Clinical Report

Achieving ideal emergence profile and restoration contours for implant‐supported prostheses in the anterior esthetic zone is a prime requisite. In this report, the patient presented with decreased restoration space and unfavorable tissue contours for an implant restoration. Correction of space deficiency and reshaping of excess bone height and soft tissue were planned and executed carefully prior to definitive restoration of a maxillary anterior missing tooth with an implant‐retained prosthesis. Post‐treatment evaluation of the papillary levels and soft tissue profile helped in assessing maintenance of the restored emergence profile.     

Restoration of occlusal vertical dimension by means of a silica-coated onlay removable partial denture in conjunction with dentin bonding: a clinical report.

The prosthesis described in this article allowed restoration of occlusal height by means of an onlay removable partial denture and composite resin bonded veneers. Reasons for its selection are: 1. It is a reversible procedure. 2. The patient can easily clean any plaque accumulation due to supragingival margins. 3. The cost to the patient was much lower than that of a fixed prostheses. 4. Chair time is less than with a fixed prosthesis. 5. Tooth structure remains relatively unaltered except for recontouring prior to onlay construction. 6. Repairs are easily done. 7. The onlays of the removable partial denture transfer the occlusal load on the abutment teeth along their long axes. 8. The procedure is less stressful and fatiguing to the patient than that involving a fixed prosthesis.     

有关箍效应的争议

桩核冠修复是临床上应用非常广泛的修复方法。箍效应被应用于桩核冠修复。尽管许多学者对箍效应在根管治疗牙的桩核冠修复中抗折性作用以及箍的高度、包绕度等进行了一系列的理论、实验和临床研究,但仍然存在不少争议。本文就此作一综述。     

有关箍效应的争议

桩核冠修复是临床上应用非常广泛的修复方法。箍效应被应用于桩核冠修复。尽管许多学者对箍效应在根管治疗牙的桩核冠修复中抗折性作用以及箍的高度、包绕度等进行了一系列的理论、实验和临床研究,但仍然存在不少争议。本文就此作一综述。