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Quintessence International

Xin Zhang, Wei Liu, Hai Qing, Xibo Pei, Junyu Chen, Jian Wang
OBJECTIVE: Many studies have investigated the effect of implant number on the performance of implant-supported overdentures (ISO), but few have focused on denture movement. This in-vitro study aims to investigate the influence of implant number on the movement of mandibular ISO under biting force. METHOD AND MATERIALS: An edentulous mandibular cast and 12 overdentures (n = 12) were fabricated, and a locator attachment system with blue nylon inserts was chosen for this study...
July 9, 2018: Quintessence International
Gabrielle Villa, Luca De Stavola, Andrea Fincato, Antonio Guida, Antonio Magliano, Mauro Merli, Giovanni Polizzi, Matthias Karl
OBJECTIVE: To evaluate the survival and complication rate of 7-mm short, parallel-walled, conical-connection implants in daily practice. METHOD AND MATERIALS: This multicenter retrospective study included 219 consecutive patients who received 323 implants. Indication was limited vertical bone height preventing placement of implants longer than 7 mm. Placement and loading protocols were determined on a case-by-case basis and included placement in fresh extraction sockets and healed sites, and loading was either immediate, early, or delayed...
July 9, 2018: Quintessence International
Sara N Shah, Jamie Chung, David M Kim, Eli E Machtei
OBJECTIVE: A randomized trial to assess clinical and radiographic outcomes of short versus standard dental implants placed with concomitant vertical bone augmentation. METHOD AND MATERIALS: Patients requiring dental implants were randomized to receive either 6-mm implants (experimental) or 10-mm implants with vertical augmentation (control). Custom load-bearing healing abutments were connected to allow for indirect resonance frequency analysis measurements. Standardized radiographs were taken at implant placement (baseline), and at 3 and 12 months...
July 9, 2018: Quintessence International
Catherine Petit, Olivier Huck, Salomon Amar, Henri Tenenbaum
This case report describes the long-term follow-up of a patient with localized aggressive periodontitis over a 30-year period. A 16-year-old woman was referred for periodontal assessment after starting orthodontic treatment. The patient was treated initially by combined nonsurgical and antimicrobial therapy, and autotransplantation of maxillary third molars in place of maxillary first molars, followed by a regular supportive periodontal treatment program. This challenging case demonstrated that elimination of putative bacterial pathogens and long-term supportive periodontal treatments provide an effective treatment modality for localized aggressive periodontitis...
June 21, 2018: Quintessence International
Dimitrios Michelogiannakis, Heleni Vastardis, Ioannis Melakopoulos, Chrysanthy Papathanasopoulou, Konstantinos I Tosios
The case of an 18-year-old woman with generalized short root anomaly (SRA) is presented, and the clinical management and challenges associated with this rare condition are discussed. The patient was referred for restoration of the edentulous maxillary left anterior region. Due to the SRA, the patient had previously received limited orthodontic treatment for the ectopic maxillary canines. The maxillary left canine failed during orthodontic traction, the left lateral incisor migrated in its region and had poor prognosis due to severe mobility...
June 8, 2018: Quintessence International
Fatih Cabbar, Muammer Çağrı Burdurlu, Ceyda Özçakır Tomruk
OBJECTIVES: Dental anxiety may play a central role in the oral health status and treatment outcomes of oral surgical procedures. The study aimed to investigate the effect that brief written information has over patients undergoing oral surgical procedures and to evaluate factors that may cause anxiety. METHOD AND MATERIALS: A prospective study was performed on 38 mandibular third molar surgery patients (mean age 26.74 ± 6.44 years) and 56 implant surgery patients (mean age 49...
April 16, 2018: Quintessence International
Thomas Gerhard Wolf, Gerhard Konrad Seeberger, Angelika Callaway, Benjamín Briseño-Marroquín, Philippe Rusca, Michael Frank, Ernst-Jürgen Otterbach
OBJECTIVE: A trend towards increasingly new forms of dental practice has been observed in the FDI World Dental Federation. Elementary foundations such as the free dentist and therapy choice, and independent, free, self-responsible professional practice may be undermined. The current study is aimed at analyzing the general training framework, organization, and professional types of dental practice in the European Regional Organization (ERO) zone and at critically discussing selected aspects of changes in the dental profession...
February 26, 2018: Quintessence International
Ihsène Taihi, Loredana Radoi
Chronic non-suppurative osteomyelitis (CNSO) is a chronic bone disease and may be associated with a reparative periosteum entity called proliferative periostitis (PP). This condition rarely affects the maxillofacial region. Mandibular cases were already described for an infectious dental cause, often with an "onion skin" radiographic aspect, but some rare reported cases showed no obvious etiology. They represent a challenge for diagnosis because of possible misdiagnosis leading to unsuccessful or inappropriate treatment attempts...
February 12, 2018: Quintessence International
Walter Sutter, Sebastian Berger, Marius Meier, Alexander Kropp, Andrej M Kielbassa, Dritan Turhani
OBJECTIVE: Bone and soft tissue calcifications can often be visualized on panoramic radiographs, thus leading to presumptive diagnoses requiring further examinations. This cross-sectional study determined the prevalence of suspected carotid artery calcifications, tonsilloliths, calcified submandibular lymph nodes, sialoliths of the submandibular glands, and idiopathic osteosclerosis in a Lower Austrian subpopulation. METHOD AND MATERIALS: Digital panoramic radiographs (DPR) taken from 1,042 subjects for other clinical purposes between the years 2013 and 2015 were evaluated, using a standardized template...
January 22, 2018: Quintessence International
Matthias Karl, Tanja Grobecker-Karl
OBJECTIVE: Adaptation of the surgical protocol and implant selection depending on bone quality has been advocated. It was the goal of this in-vitro study to quantify the effect of implant geometry and implant site preparation on micromotion at the implant-bone interface. METHOD AND MATERIALS: A parametric study was conducted with implants differing in shape, length, and diameter placed in polyurethane foam material differing in density and structure following various methods of implant site preparation...
January 22, 2018: Quintessence International
Peter N Amin, Nabil F Bissada, Paul A Ricchetti, Andre Paes B Silva, Catherine A Demko
OBJECTIVE: To compare postoperative pain associated with palatal and tuberosity donor sites for soft tissue grafting, and to evaluate the outcomes in both the donor and recipient sites. METHOD AND MATERIALS: Twenty healthy nonsmokers requiring bilateral soft tissue grafts were recruited for the study. For the 10 patients who required free gingival graft (FGG), 10 epithelialized grafts were taken from the tuberosity and 10 from the palate. The other 10 patients who required coronally advanced flap (CAF) and connective tissue graft (CTG) received 10 de-epithelialized grafts from the tuberosity and 10 from the palate...
2018: Quintessence International
Valentina Lanteri, Giampietro Farronato, Claudio Lanteri, Rosanna Caravita, Gianguido Cossellu
OBJECTIVE: The purpose of this retrospective study was to determine the efficacy of Invisalign in a large sample of patients compared to fixed appliances. METHOD AND MATERIALS: The test group consisted of 100 patients treated with Invisalign compared with a control group treated with conventional fixed appliances matched for sex, age, and initial severity of malocclusion based on the amount of anterior dental crowding (Little Index) and the Peer Assessment Rating (PAR Index) scores...
2018: Quintessence International
Yoav Pietrokovski, Orit Shakartsi-Amar, Gilad Ben-Gal, Mordechai Lipovetsky-Adler
OBJECTIVE: Interchangeable articulators are crucial for a precise clinical outcome. Lack of interchangeability will affect the accuracy of the occlusion of prosthetic restorations. The objective of this study was to evaluate the interchangeability of KaVo PROTARevo articulators. METHOD AND MATERIALS: KaVo PROTARevo semi-adjustable articulators in routine use were employed. Identical casts were transferred among the articulators and the distance between casts was measured using digital photos of sagittal and frontal aspects of each articulator by two independent examiners...
2018: Quintessence International
Daniel Edelhoff, M Oliver Ahlers
According to the Fifth German Oral Health Study, the caries experience in the German population is declining sharply. The number of teeth still present at an advanced age has also increased significantly in recent decades. This shows a clear trend towards long-term tooth preservation - possibly with fixed dental prostheses - which is further supported by the possibility to place implants to increase the number of abutments. The pronounced decline in caries experience has given Germany a leading international position in terms of dental health...
2018: Quintessence International
Sorin Teich
No abstract text is available yet for this article.
2018: Quintessence International
Zbyněk Mazur, Ladislav Korábek, Daniel Mazur
OBJECTIVE: This article presents a methodology of a comprehensive score for assessment and monitoring of dental implant success from the peri-implant tissue perspective. It involves only standard and minimally invasive techniques accessible to general dental practices, without the need for special equipment. METHODS AND MATERIALS: The proposed score methodology combines existing consensual global knowledge regarding aspects of dental implant success with the standard examination tools accepted for regular recall assessment...
2018: Quintessence International
Sandra Tobiska, Gabriel Krastl
This case report presents long-term results following horizontal root fracture of both maxillary central incisors in a 19-year-old woman with aggressive periodontitis. Due to extensive marginal bone loss and the close proximity of the fracture lines to the bottoms of the periodontal pockets, the prognosis of both teeth was uncertain at the time of the accident. Nevertheless, a conservative treatment strategy consisting of splinting and nonsurgical periodontal therapy was initiated. Follow-up at 12 years after the start of treatment revealed a stable situation from clinical and radiologic perspectives...
2018: Quintessence International
Pablo Angel, Cristian Bersezio, Juan Estay, Andrea Werner, Hector Retamal, Constanza Araya, Javier Martin, Eduardo Fernández
OBJECTIVE: The aim of this study was to assess the bleaching efficacy and impact on psychosocial and esthetics self-perception of a low-concentration (6%) hydrogen peroxide (H2O2) gel compared with a conventional (37.5%) H2O2 gel when used as an in-office treatment. METHOD AND MATERIALS: In total, 35 participants received two sessions of three 12-minute applications of treatment with 37.5% H2O2 on one side of the mouth and 6% H2O2 on the other. Color changes were measured objectively using total variation in color (ΔE) and subjectively using Vita Classical scale (ΔSGU)...
2018: Quintessence International
F-Michael Eggert, Liran Levin
In chronic periodontitis and peri-implantitis, cells of the innate and adaptive immune systems are involved directly in the lesions within the tissues of the patient. Absence of a periodontal ligament around implants does not prevent a biologic process similar to that of periodontitis from affecting osseointegration. Our first focus is on factors in the biology of individuals that are responsible for the susceptibility of such individuals to chronic periodontitis and to peri-implantitis. Genetic factors are of significant importance in susceptibility to these diseases...
2018: Quintessence International
Syed Rashid Habib, Asim Khaled Al Otaibi, Talal Ali Al Anazi, Samer Mosleh Al Anazi
OBJECTIVE: The aim of this in-vitro study was to investigate the marginal and internal fit of zirconia copings fabricated by five CAD/CAM (computer-aided design/computer-assisted manufacture) systems. METHOD AND MATERIALS: A typodont mandibular right first molar was prepared according to ideal parameters for a zirconia crown, scanned digitally, and 100 identical resin dies fabricated by 3D printing. Samples were randomly divided into five groups and sent to CAD/CAM systems for zirconia copings (A, Ceramill-Motion 2, Amann Girrbach; B, Weiland, Ivoclar Vivadent; C, Cerec, Ivoclar Vivadent; D, Prettau Zirconia, Zirkonzahn; E, Cad4dent)...
2018: Quintessence International
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