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Dental Articles, Dental Publications, and Dental Journals

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Loss of Accuracy to Torque Wrenches Due to Clinical Use and Cleaning Procedures: Short Communication

Loss of Accuracy to Torque Wrenches Due to Clinical Use and Cleaning Procedures: Short Communication
The aim of this study was to investigate the way intensive use and multiple cleanings of torque wrenches may interfere with accuracy over time. Three different brands were tested at baseline and after enduring mechanical testing and cleaning in a thermal disinfector. Torque wrenches were tested at a predetermined value of 30Ncm at given intervals, and true values were registered by means of a digital torque gauge. The spring-style torque wrench produced values that changed significantly after maltiple mechanical and multiple cleaning cycles. However, the differences were small and the measured values from all tested specimens were close to the predetermined value of 30Ncm.

Author(s): Egbert Stroosnijder, DDS; Marco M.M. Gresnigt, DDS, PhD; Eric W. Meisberger, DDS; Marco S. Cune, DDS, PhD
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Gingival Biotype Characterization - A Study in a Portuguese Sample

Gingival Biotype Characterization - A Study in a Portuguese Sample
Establishing the diagnosis of a particular clinical situation in the oral cavity must take many characteristics into consideration, with gingival pheno-type being an important one because it is linked to every individual's gingival morphogenic characteristics, including soft tissue appearance, genetic characteristics, and the way the gingiva looks after manipulation.

Author(s): Ana Peixoto, DMD; Tiago M. Marques, DMD; Andre Correia, DMD, PhD
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Human Palatal and Tuberosity Mucosa as Donor Sites for Ridge Augmentation

Human Palatal and Tuberosity Mucosa as Donor Sites for Ridge Augmentation
Since different clinical outcomes of periodontal bilaminar surgeries using the palate or the maxillary tuberosity as connective tissue (CT) donor sites have been observed, tissues grafted with CT from the palate or the tuberosity 1 year after surgical procedures for ridge augmentation were compared with nongrafted tissues by using morphologic and molecular methods. Collagen content and matrix metalloproteinases 1 and 2 expression were similar in tissues and cultured fibroblasts from the palate and tuberosity, although with interindividual differences. In contrast, differences in collagen cross-linking and maturation in the tuberosity fibroblasts were observed, suggesting a possible role in determining hyperplastic responses in some patients.

Author(s): Claudia Dellavia, DDS, PhD; Giano Ricci, DDS; Letizia Pettinari, PhD; Cristina Allievi, DDS, PhD; Fabio Grizzi, PhD; Nicoletta Gagliano, PhD
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New Surgical Protocol to Create Interimplant Papilla: The Preliminary Results of a Case Series

New Surgical Protocol to Create Interimplant Papilla: The Preliminary Results of a Case Series
The aim of this study was to introduce a new surgical technique to regenerate the papilla adjacent to multiple or single implants using a novel instrument and a new incision design. A total of 10 consecutively treated patients with maxillary anterior implant-supported provisional restorations and missing interproximal papillae received a subepithelial connective tissue graft. The receipient site was prepared with a buccal incision apical to the mucoginigival unction and to the defective papilla, and a palatal incision, followed by buccolingual tunneling performed with a translingual curette. An average improvement in papilla index score from 0.8 to 2.4 was found after an average follow-up period of 16.3 months. This case series demonstrated that interimplant papilla regeneration can be successful over a period of 11-30 months postloading. Long-term prospective studies on tissue stability and esthetic outcomes are needed to corroborate the finding in this study.

Author(s): Stuart Froum, DDS; Miltiadis Lagoudis, DMD; Giovanni Molina Rojas, DDS; Takanori Suzuki, DDS, PhD; Sang-Choon Cho, DDS
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Vertical Ridge Augmentation and Soft Tissue Reconstruction of the Anterior Atrophic Maxillae: A Case Series

Vertical Ridge Augmentation and Soft Tissue Reconstruction of the Anterior Atrophic Maxillae: A Case Series
Severe vertical ridge deficiency in the anterior maxilla represents one of the most challenging clinical scenarios in the bone regeneration arena. As such, a combination of vertical bone augmentation using various biomaterials and soft tissue manipulation is needed to obtain successful outcomes. The present case series described a novel approach to overcome vertical deficiencies in the anterior atrophied maxillae by using a mixture of autologous and anorganic bovine bone. Soft tissue manipulation including, but not limited to, free soft tissue graft was used to overcome the drawbacks of vertical bone augmentation (eg, loss of vestibular depth and keratinized mucosa). By combining soft and hard tissue grafts, optimum esthetic and long-term implant prosthesis stability can be achieved and sustained.

Author(s): Itsvan A. Urban, DMD, MD, PhD; Alberto Monje, DDS; Jaime Lozada, DMD; Hom-Lay Wang, DDS, MSD, PhD
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