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Int J Periodontics Restorative Dent

Poorva Khullar, Deepak Raisingani, Shailendra Gupta, Rohit Kumar Khatri
AIM: A cross-sectional radiographic orthopantomogram (OPG) survey was done to determine the prevalence of apical periodontitis (AP) in root canal-treated teeth in a selected population, and to evaluate the influence of the coronal restorations (CR) and root canal fillings on the periapical status. MATERIALS AND METHODS: A total of 250 OPGs were evaluated out of which root canal treatment (RCT) had been performed in 438 teeth which was taken as the sample size. STATISTICAL ANALYSIS USED: Chi-square test, odds ratio and p-values were recorded...
May 2013: International Journal of Clinical Pediatric Dentistry
Sladana Milardovic Ortolan, Mihovil Strujic, Andrej Aurer, Josko Viskic, Lana Bergman, Ketij Mehulic
This case report describes the management of a crown-root fractured maxillary right central incisor and a crown fractured maxillary left central incisor using two different techniques. A complex procedure was designed to manage this case including orthodontic extrusion to move the fracture line above the alveolar bone and surgical recontouring of the altered gingival margin. Finally, the right incisor was restored prosthodontically. Prosthetic treatment was based on performing a post and core, and all-ceramic crown on the extruded tooth...
January 2012: International Journal of Clinical Pediatric Dentistry
Stella Kourkouta
Assessment of the smile or lip line is imperative when implant therapy is carried out in the esthetic zone. The smile is generally defined as high, average, or low. Females are reported to have higher lip lines than males, which means that they are at greater risk when placing and restoring implants in the esthetic zone. Maximum upper lip elevation, usually observed during a strained posed smile, should be assessed. This paper discusses some clinical observations and concepts in relation to smile line assessment for implant therapy in the esthetic zone...
April 2011: International Journal of Periodontics & Restorative Dentistry
Daniela Carmagnola, Silvio Abati, Alessandro Addis, Giovanni Ferrieri, Matteo Chiapasco, Eugenio Romeo, Giorgio Vogel
The aim of this study was to evaluate the early phases of bone healing around two different implant surfaces. For this purpose, four minipigs were used. Implants with rough titanium surfaces (ITI sandblasted/acid-etched and Branemark TiUnite) were placed in the maxillae of the animals and sacrifice was scheduled in such a way that healing times of 3 days, 1 week, 2 weeks, 3 weeks, 4 weeks, 5 weeks, 6 weeks, and 7 weeks were obtained. Histologic analysis revealed that a similar pattern was observed in the phases of bone healing around both types of implants between 3 days and 7 weeks...
October 2009: International Journal of Periodontics & Restorative Dentistry
Giacomo Fabbri, Myra Brennan, Massimiliano Manfredi, Georgio Ban
The use of biodegradable fixation materials or devices during maxillofacial, craniofacial, and orthopedic reconstructive surgical procedures reduces or eliminates the need to perform a second surgical procedure, which would otherwise be required to remove a nonbiodegradable device. This article presents a novel approach to augment a horizontally deficient alveolar ridge using both a resorbable plate/screw fixation system composed of a polylactic acid-polyglycolic acid (PLLA-PGA) copolymer to provide a rigid scaffolding for the bone chips and a resorbable collagen barrier (Bio-Gide, Osteohealth) to secure the graft material...
October 2009: International Journal of Periodontics & Restorative Dentistry
Ki-Yeon An, Ju-Yeon Lee, Sung-Jo Kim, Jeom-Il Choi
The perceptions of dental professionals and laypeople were compared with respect to relative gingival marginal levels of the lateral incisors, flatness of the gingival margin of central incisors and its variations in horizontal locations, and interproximal contact length relative to gingival biotype. The distribution of tooth-gingiva topography in periodontally healthy subjects was also identified. A noticeable difference was observed between dental professionals and laypeople in their perception of maxillary anterior esthetic components...
October 2009: International Journal of Periodontics & Restorative Dentistry
Yunzhuan Zhao, Yanpu Liu, Baolin Liu, Yinghuai Zhang, Zhiyu Jia, Lei Wang, Liang Kong
In this study, a new type of distraction implant (DI) that could be transformed into a prosthetic implant after distraction was applied to augment the alveolar ridge, and the bone response around it was observed in six dogs. Two DIs were placed into the lateral edentulous submandibular ridge after osteotomy. The DIs were left to integrate into the bone after 8 days of distraction at a rate of 1 mm per day. Specimens were obtained at 5, 8, and 12 weeks after distraction. Radiopacity of the regenerated bone increased steadily during the consolidation period...
October 2009: International Journal of Periodontics & Restorative Dentistry
Robert Azzi, Daniel Etienne, Henry Takei, Fermin Carranza
Several surgical techniques, such as the papilla preservation flap, the modified papilla preservation flap, and the sulcular incision flap, have attempted to achieve clot stabilization and graft coverage in an attempt to regenerate lost tissue due to periodontal disease. This case report focuses on soft tissue root coverage and bone regeneration in a one-wall osseous defect using the pouch-and-tunnel surgical procedure. The pouch-and-tunnel surgical technique is a minimally invasive periodontal plastic surgical procedure that uses subepithelial connective tissue as a free graft in a pouch beneath the gingival margin, created by sulcular incisions around the involved teeth...
October 2009: International Journal of Periodontics & Restorative Dentistry
Yan Zhou, Yun Fu, Jing-ping Li, Liu-ying Qi
The purpose was to identify the effects of estrogen on the expression of alkaline phosphatase (ALP) and osteoprotegerin (OPG) in human periodontal ligament cells (hPDLCs). Cells were obtained from healthy periodontal tissue explants of teeth that had been extracted for orthodontic reasons. ALP activity was determined after 17b-estradiol (17b-E2) treatment at 0, 0.1, 1, 10, and 100 nmol/L by using assay reagents. OPG expression in hPDLCs was studied by enzyme-linked immunosorbent assay and reverse-transcriptase polymerase chain reaction...
October 2009: International Journal of Periodontics & Restorative Dentistry
Hakan Terzioğlu, Burak Yilmaz, Bengul Yurdukoru
The color stability of both porcelain and luting materials is very important for the esthetics of laminate veneers and all-ceramic crowns. The purpose of this study was to determine the effect of different shades of resin-based luting cement and the thickness of IPS Empress ceramics on the final color of the restorations. Resin-based dual-polymerized composite cement in two different shades (RelyX ARC) and ceramic disks of different thicknesses were selected for the study. Forty specimens (ten each of four different thicknesses: 0...
October 2009: International Journal of Periodontics & Restorative Dentistry
Karl Ludwig Ackermann
Socket or ridge preservation is performed to maintain the contour of the alveolar ridge prior to conventional or implant-based prosthetic therapy. In this retrospective analysis of consecutive subjects, a natural bone mineral containing collagen was grafted into 110 sockets in 62 patients. The sites were left open to heal. Based on external measurements with a periodontal probe, the soft tissue volume and contour were largely preserved at all sites, irrespective of the initial defect morphology. Clinical advantages of this protocol include predictable preservation of the soft tissues, favorable healing characteristics, and easy handling of the material...
October 2009: International Journal of Periodontics & Restorative Dentistry
Xavier Rodríguez-Ciurana, Xavier Vela-Nebot, Maribel Segalà-Torres, Carlos Rodado-Alonso, Víctor Méndez-Blanco, Marta Mata-Bugueroles
Most biomechanical studies of implant-supported restorations have not taken into account the biologic changes that occur following exposure of the implants to the oral environment. Therefore, the present finite element analysis study was designed to compare the biomechanical response of three types of implant-abutment configurations both before and after establishment of a new biologic width. The three functional units studied were: a 5-mm implant platform connected with an external hexagon to a 5-mm-diameter abutment (type 1), a 5-mm implant platform connected with an external hexagon to a 4...
October 2009: International Journal of Periodontics & Restorative Dentistry
Christian Coachman, Maurice Salama, David Garber, Marcelo Calamita, Henry Salama, Guilherme Cabral
The Class III defect environment entails a vertical and horizontal deficiency in the edentulous ridge. Often, bone and soft tissue surgical procedures fall short of achieving a natural esthetic result. Alternative surgical and restorative protocols for these types of prosthetic gingival restorations are presented in this three-part series, which highlights the diagnostic and treatment aspects as well as the lab and maintenance challenges. A complete philosophical approach involves both a biologic understanding of the limitations of the hard and soft tissue healing process as well as that of multiple adjacent implants in the esthetic zone...
October 2009: International Journal of Periodontics & Restorative Dentistry
Sergio Kahn, Andre Medina Coeli Egreja, Marcos de Oliveira Barceleiro
Periodontal reconstructive surgery procedures seek to correct mucogingival defects, including gingival recession. This case report describes the use of a subepithelial connective tissue graft (SCTG) associated with root-end fillings using mineral trioxide aggregate (MTA) for the treatment of Miller Class II recession with root apex exposure. A partial-thickness double pedicle flap was made, followed by root preparation with curette and bur finishing. The exposed root apex was removed and the canal was filled with MTA...
August 2009: International Journal of Periodontics & Restorative Dentistry
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