Ausgabe 1/2013,   Jahrgang 3   (15.03.2013)

Seite 7
Editorial: Whither Goeth the Dental Applicant Pool?
Simonsen, Richard J.

Seite 8 - 22
Ultimate Ceramic Veneers: A Laboratory-Guided Preparation Technique for Minimally Invasive Restorations
Andrade, Oswaldo Scopin de / Ferreira, Luiz Alves / Borges, Gilberto Antonio / Adolfi, Dario

Ceramic laminate veneers are a predictable treatment option for esthetic anterior restorations. When bonded to enamel, ceramic veneers offer stable long-term results. By using current laboratory techniques associated with a strict clinical protocol, very thin veneers can be provided with minimal loss of hard tissue. This article presents a novel treatment technique-the ultimate ceramic veneer- in which tooth preparation is laboratory guided and performed after final impression taking. Based on the wax-up and mock-up, the ceramist prepares the die only where there is no space for the ceramic. Thus, the final result is based on a conservative approach that creates minimally invasive restorations.

Seite 24 - 37
Guided Soft and Hard Tissue Preparation: A Novel Technique for Crown Lengthening
Amato, Francesco / Macca, Ugo / Borlizzi, Diego

This article presents an innovative approach to crown lengthening that offers predictable esthetics and harmonious bone and gingival contours. Following fabrication of the diagnostic wax-up, a provisional fixed prosthesis is constructed. At the time of provisional insertion, the tooth, marginal gingiva, and crestal bone are prepared with rotary instruments using a prosthetic template as a guide. This procedure is known as guided soft and hard tissue preparation. The provisional is then inserted, thus invading the biologic width. Within no more than 2 weeks, bone resective surgery is performed to recreate normal biologic width. A well-defined preparation margin acts as a guide during the osteoplasty procedure, which is used to reestablish the correct distance between the crown margin and crestal bone. A total of 10 patients in need of crown lengthening have been treated with this procedure, and 1- to 7-year follow-ups have shown good esthetic results and stable tissue levels.

Seite 38 - 50
Three-Year Follow-up of Y-TZP Crowns Fabricated with MAD/MAM Technology and the Slow-Cooling Method for Porcelain Application: Case Report
Melo, Mary A. S. / Passos, Vanara F. / Silva, Nelson R. F. A. / Fernandes, Carlos A. O.

Questions regarding the mechanical performance of yttria-stabilized tetra-gonal zirconia polycrystal (Y-TZP)-supported ceramic systems have led to much debate in the dental literature. Over the past 4 years, however, increased understanding of the interaction between the veneering porcelain and Y-TZP core seems to have improved the associated clinical outcomes. Along with enhanced mechanical response and biocompatibility, Y-TZP porcelain crowns have shown excellent esthetic outcomes. This case report describes the 3-year follow-up of four single crowns in the maxillary anterior region fabricated using a Y-TZP copy-milling system and the slow-cooling method for feldspathic porcelain application. The 3-year evaluation revealed no signs of chipping or fracture. The final esthetic and functional results showed that this treatment modality seems to be a reliable method for restoring esthetically compromised anterior teeth.

Seite 52 - 59
Gingival Depigmentation: Two Case Reports
Mhaske, Maya / Cholepatil, Anup

The gingival tissues play an important role in an esthetically pleasing smile. Gingival pigmentation results from melanin granules produced by melanoblasts. Gingival melanin hyperpigmentation is not a medical problem; however, patients often complain about the unsightly appearance of dark gums. This paper describes two case reports in which three techniques-scalpel surgery, diamond bur ablation, and electrosurgery-were used for gingival depigmentation. The results suggest that use of the diamond bur is the most effective method for achieving esthetic satisfaction and uneventful wound healing without infection or severe pain.

Seite 60 - 65
Nonsurgical Periodontal Therapy in Diabetic Patients
Rakhewar, Purushottam S. / Syed, Ruby / Doiphode, Satish S.

Recently, clinicians have begun to recognize the threats posed by periodontal diseases to individuals with chronic diseases such as diabetes. While some early studies have indicated potential associations between oral and systemic health, they also support the hypothesis that periodontitis triggers both local and systemic host inflammatory responses. Diabetic patients with periodontal infections are at greater risk of worsening glycemic control over time compared to diabetic subjects without periodontitis. Further, research has shown a positive effect of periodontal treatment on the glycemia levels of diabetic patients with periodontitis. Numerous treatment modalities exist for the treatment of periodontitis. Nonsurgical/nonintrusive mechanical periodontal treatment is the corner-stone of periodontal therapy and the first recommended approach for the control of periodontal infections. There are great risks involved in the surgical treatment of periodontal infections in systemically unhealthy patients; therefore, sincere efforts should be made to offer a nonsurgical approach. This article aims to reestablish the importance of nonsurgical periodontal therapy by presenting two case reports in which nonsurgical treatment provided remarkable results in terms of blood sugar levels and profuse gingival enlargement in patients with diabetes.

Seite 66 - 71
Three Steps to Predictable Shade Matching of Anterior Teeth
Chu, Stephen J. / Mieleszko, Adam J.