Treatment of extended anterior crown fractures using Type IIIA bonded porcelain restorations.

Novel-design bonded porcelain restorations, the so-called Type IIIA BPRs, represent a reliable and effective procedure when restoring large parts of the coronal volume and length in the anterior dentition. While traditional treatment approaches involve the removal of large amounts of sound tooth substance (with adverse effects on the pulp, gingivae and crown biomechanics, as well as serious financial consequences), the use of adhesive technology instead can provide maximum preservation of tissues and limited costs. Considerable advantages, such as the economical and noninvasive treatment of crown-fractured teeth, are inherent to Type IIIA bonded porcelain restorations, reducing the need for preprosthetic interventions (e.

Immediate dentin sealing: a fundamental procedure for indirect bonded restorations.

Unlabelled: The purpose of this article is to review evidence-based principles that could help optimize dentin bonding for indirect composite and porcelain restorations. More than 30 articles were reviewed, most of them addressing the specific situation of dentin bonding for indirect restorations. It appears that the combined results of this data plus clinical experience suggest the need for a revision in the dentin bonding procedure.

Leadership in research: organizing genius.

Science has become complex. Its success is increasingly becoming a matter of collaboration based on established infrastructures and professional norms in response to environmental challenges. Leadership in such situations means organizing the genius inherent in great groups.

Human saliva penetration of root canals obturated with two types of mineral trioxide aggregate cements.

The sealing ability of orthograde mineral trioxide aggregate (MTA) root canal filling against human saliva was assessed in vitro. Leakage of gray-colored MTA, white-colored MTA and vertically condensed gutta-percha and sealer were compared. Forty-three extracted single-rooted human teeth were serially instrumented to a file size 40/0.

To extract or not to extract? Factors that affect individual tooth prognosis.

A dentist evaluates a natural tooth for its quality of health. Once this is accomplished, the clinician obtains an estimate of longevity and decides whether to extract or to treat and maintain the tooth. There often are questions and doubts involved in the decision-making process in regard to the prognosis of an individual tooth.

Treatment planning: implant-supported partial overdentures.

When multiple anterior teeth are missing, many options of replacement are available. Traditionally, the choice was between a fixed or removable prostheses. Today, with the predictability of dental implants, the options of tooth replacement range from removable partial dentures to implant-supported fixed prostheses.

Immediate implant placement: diagnosis, treatment planning and treatment steps/or successful outcomes.

Diagnosis and treatment planning are key factors in achieving successful outcomes after placing and restoring implants placed immediately after tooth extraction. The efficacy of immediate implant placement has been established and shown to be predictable if reasonable guidelines are followed. Some or all of the following suggestions, depending on individual circumstances should be considered when evaluating a patient for dental implants: thorough medical and dental histories, clinical photographs, study casts, periapical and panogram radiographs, as well as a linear tomography or computerized tomography of the proposed implant sites.

An interdisciplinary approach to treatment planning in implant dentistry.

The practice of implant dentistry requires an interdisciplinary approach that integrates the knowledge, skills, and experience of all the disciplines of dentistry into a comprehensive treatment plan. The team must examine the anticipated restorative site to determine the suitability of the existing hard and soft tissues for implant placement. Deficiencies in hard and soft tissue, which prevent ideal implant placement, must be recognized and addressed to ensure a more predictable esthetic outcome.

Genetic basis for conversion of rough-to-smooth colony morphology in Actinobacillus actinomycetemcomitans.

The basis of the rough-to-smooth conversion of Actinobacillus actinomycetemcomitans was examined. Smooth variants often contained mutations at the flp promoter region. Replacing the mutated flp promoter with the wild-type promoter restored the rough phenotype.

Structural organization and cellular localization of tuftelin-interacting protein 11 (TFIP11).

Tuftelin-interacting protein (TFIP11) was first identified in a yeast two-hybrid screening as a protein interacting with tuftelin. The ubiquitous expression of TFIP11 suggested that it might have other functions in non-dental tissues. TFIP11 contains a G-patch, a protein domain believed to be involved in RNA binding.

Mutation analysis of the flp operon in Actinobacillus actinomycetemcomitans.

Fresh clinical isolates of the periodontal pathogen Actinobacillus actinomycetemcomitans live as autoaggregates, in which cells are densely packed and embedded in an extracellular matrix composed of bundled fimbriae, exopolymers, and vesicles. The expression of fimbriae is known to be determined by the flp operon of 14 genes, flp-1-flp-2-tadV-rcpCAB-tadZABCDEFG. We generated mutations of each gene of this operon in A.

Functional training for dentistry: an exercise prescription for dental health care personnel.

Athlete's Performance, an organization of specialists in the development of athleticism and injury prevention, has analyzed the seated postural demands of dental health care workers for the purpose of developing an exercise protocol appropriate to the dental profession. As with their individualized exercise prescriptions for some of the world's most acclaimed athletes, the conditioning of the torso is the focus of a prescription for exercise when injury prevention is emphasized. An analysis of the seated postural demands common to dental health care workers is the basis for an exercise protocol intended to strengthen the torso and encourage "good" seated posture.

Promising indeed: the role of "experts" and practitioners in the introduction and use of new materials and techniques in restorative dentistry.

Contemporary general practitioners are facing enormous challenges. Whether they want to or not, they are forced to manage a complex small business and are often ill equipped educationally and emo- tionally to do so. They also have to manage a substantial number of staff members, often with complex emotional interactions.

IGFs increase enamel formation by inducing expression of enamel mineralizing specific genes.

Insulin-like growth factors (IGF-I and IGF-II) have been shown to play an important role in growth and differentiation in a number of tissues including mineralizing bone. Little is known about their role in tooth mineralization. Previous work in our laboratory has shown the presence of IGFs ligands, their receptors, and their binding proteins during mouse tooth morphogenesis.

Minimally invasive surgery: an alternative approach for periodontal and implant reconstruction.

Minimally invasive surgery is defined as a procedure involving a smaller access opening and less-extensive surgical manipulation of the tissues that surround the target structure. It represents a rapidly advancing and expanding therapeutic modality in medicine and dentistry. Minimally invasive surgery has been touted as one of the major advances in medicine of the past two to three decades.

Implant site development: clinical realities of today and the prospects of tissue engineering.

The success of dental implants depends on their placement in bone of adequate density and volume in order to achieve primary stability. Optimal esthetics of implants requires their placement in a position approximating that of the natural teeth they replace. However, there is generally at least some degree of atrophy in the sites where implants are to be placed.

Materials used to restore class II lesions in primary molars: a survey of California pediatric dentists.

Purpose: The purpose of this study was to determine which materials were most commonly used by pediatric dentists in California to restore Class II lesions in the primary dentition.

Methods: A questionnaire consisting of 18 multiple-choice questions was mailed to all 440 active members of the California Society of Pediatric Dentistry (CSPD). The questions related to the practitioners' material of choice for restoring Class II lesions in primary molars.

Use of a removable partial denture in the management of chronic screw loosening.

Lack of posterior support can result in adverse occlusal forces being placed on anterior teeth. These forces may cause fremitus, splaying of the anterior teeth, and even accelerated wear. When implant-supported restorations are used, a common indicator of overload is screw loosening.

Fifty years of general anesthesia in California oral and maxillofacial surgery.

In summary, the advances of the last half of the 20th century in general anesthesia delivery by oral and maxillofacial surgeons are the following: 1. Oral and maxillofacial surgeons in training are exposed to significantly more hospital general anesthesia training and in addition spent much of their residency training performing general anesthesia on outpatient dental patients undergoing dentoalveolar surgery. Training programs increased from one year to three years, then to four years and finally, many six-year programs were developed that award the MD degree during or following completion of the residency program.

New considerations in the treatment of compromised third molars.

Management of asymptomatic malposed third molars is a controversial topic. As a result, many malposed or mildly pathologic third molars are not removed. Historical pro and con arguments regarding removal centered around cost and the aspects of the surgical removal itself.