Thirty-Year Clinical Performance of Double-Crown Retained Removable Partial Dentures - A Practice-Based Retrospective Study.

This retrospective study evaluated the clinical long-term survival of 1405 double-crown retained removable partial dentures (DRPDs) over 30 years of follow-up. Kaplan Meier survival rate for DRPDs was 96.6% after 5 years, 88.

Transcutaneous auricular vagus nerve stimulation for the treatment of myoarthropatic symptoms in patients with craniomandibular dysfunction - a protocol for a randomized and controlled pilot trial.

Background: Temporomandibular disorders (TMD) are a collective term for pain and dysfunction of the masticatory muscles and the temporomandibular joints. The most common types of TMD are pain-related, which may impact the psychological behavior and quality of life. Currently, the most popular methods for the treatment of TMD patients are occlusal splint therapy, often in combination with physical- and/or pharmacotherapy.

Distribution patterns of occlusal contact areas on natural posterior teeth - Evaluations of a cross-sectional population-based study with the Greifswald Digital Analyzing System (GEDAS).

Aim: The aim of our investigations is to optimize the anatomical basis for the design of a sufficient occlusal relationship, especially in view of the innovative technologies by analyzing the occlusal contact point patterns at cusp structures according to A-, B-, C- localization tooth by tooth on the individual occlusal surfaces in the posterior region in static habitual occlusal position.

Materials And Methods: In 3300 subjects of the population-based Study of Health in Pomerania (SHIP 1) the interocclusal registration in habitual intercuspation using silicone registration was used and analyzed by using the special evaluation software Greifswald Digital Analyzing System (GEDAS II). Chi square test was used to investigate whether the distribution of contact areas differed in the group of premolars or molars - each considered separately for maxilla and mandible - on the basis of the probability of error p < 0.

Excellence in dental research: nominated scholars for the Nobel Prize 1901-1950 with a focus on Lady May Mellanby (1882-1978) and Walter Hess (1885-1980).

Why has no dentist received the Nobel Prize so far? To answer that question, we need to take a closer look at the prize candidates. This article presents an overview of scholars in the field of dental research who were nominated for the Nobel Prize in Physiology or Medicine during the first half of the twentieth century. Drawing on archival sources in the archive of the Nobel Committee, we focus on the physiologist, Lady May Mellanby (1882-1978) and the dentist, Walter Hess (1885-1980).

Number and localization of occlusal contact areas on natural posterior teeth without dental findings - evaluations of the regional baseline study (SHIP-1) with the Greifswald Digital Analyzing System (GEDAS).

Sufficient occlusion is a basic prerequisite for the functional efficiency of the occlusal surfaces. Exactly where and in what number the occlusal contacts in the posterior region should be present for this purpose is controversial. The present study investigated the number and location of occlusal contacts on posterior teeth without dental findings, ie, without caries or restorative restorations such as fillings, crowns, etc.

[Facial pain – an interdisciplinary challenge].

Acute pain has a warning function and is necessary to survive. Conversely, chronic or recurrent pain is a pathological entity itself and has tremendous impact on the quality of life of the patients . Facial pain is very common and can have various causes.

The rotation vs translation behavior during habitual opening and closing movements of the mandible and the relationship to movement paths of condylar points.

When recording condylar movement paths with the aid of electronic measuring systems, it is often found that, especially in jaw opening and closing movements, excursive and incursive paths of movement are not congruent but run separately, independently of one another to a greater or lesser degree. The objective of the study was to investigate this phenomenon in the context of rotation vs translation behavior, also taking into consideration additional side-specific condylar movement patterns. For this purpose, the electronic movement records of habitual jaw opening of 259 participants of the associated project of the population-representative basic study SHIP 0 were evaluated.

Occlusal dysesthesia-A clinical guideline.

Background: The diagnosis and management of patients suffering from occlusal dysesthesia (OD) remain a major challenge for dental practitioners and affected patients.

Objectives: To present the results of a literature-based expert consensus intended to promote better understanding of OD and to facilitate the identification and management of affected patients.

Methods: In 2018, electronic literature searches were carried out in PubMed, Cochrane Library and Google Scholar as well as in the archives of relevant journals not listed in these databases.

Standard and limit values for the symmetry of articulation parameters in the temporomandibular joint area - evaluations of the associated project of the SHIP study.

The articulation parameters, especially the horizontal condylar inclination angle (HCI), the Bennett angle (BA), and the immediate side shift (ISS) were determined in 259 subjects (100 males; 159 females) of the associated project with reference to the population-representative baseline study (Study of Health in Pomerania, SHIP 0). The evaluations were based on a clinical functional status and electronic motion recording with the ultrasonic measuring system Jaw Motion Analyser (JMA, Zebris, Isny, Germany). The reference plane, to which all measured values were represented and the HCI calculated, was the hinge axis infraorbital plane (HA-IOP).

Effects of occlusal modifications on the muscular activity of the masseter and anterior temporalis muscles.

The aim of this study was to analyze the effect of occlusal modifications on the muscular activity of the masseter and anterior temporalis muscles. The study included 41 healthy dentate subjects who were examined in relation to the muscle activity of the masseter and anterior temporalis muscles recorded by surface electromyography (EMG) bilaterally in two different sessions. Occlusal plastic strips (thickness: 0.

Motion analysis of the mandible: guidelines for standardized analysis of computer-assisted recording of condylar movements.

Mandibular movement recording has long been established as the method for the physiological design of indirect dental restorations. Condylar movement recording is the basis for individual, patient-specific programming of partially or fully adjustable articulators. The settings derived from these recordings can generally be used in both traditional mechanical and electronic virtual articulators.

Surface EMG of the masticatory muscles. (Part 4): Effects of occlusal splints and other treatment modalities.

The fourth part of this literature review on the clinical relevance of surface electromyography (EMG) of the masticatory muscles summarizes the results of clinical studies in patients with temporomandibular disorders (TMD), preferably randomized controlled trials, examining the impact of changes to the dynamic occlusion or the effects of occlusal splints and other treatment measures on electromyographic activity. Surface electromyography is a useful tool for neuromuscular functional analysis in the field of dentistry. In combination with a thorough history and detailed clinical examination, it is able to provide objective, documentable, valid and reproducible information about the individual functional status of the masticatory muscles if the user strictly adheres to the specific guidelines.

Clinical and electromyographic follow-up of myofascial pain patients treated with two types of oral splint: a randomized controlled pilot study.

Increased resting electromyographic activity (EMG), reduced EMG during maximum voluntary clenching, and a shift to lower frequencies of the mean/median power frequency (MPF) of the EMG power spectrum have been reported for patients with temporomandibular disorder pain. It is unclear, however, whether these electrophysiological phenomena can be correlated with symptom improvement during the follow-up of myofascial pain patients in treatment. The objective of this study was to monitor the therapeutic effects of two different splint concepts (standard method and a complex splint procedure assisted by transcutaneous electrical nerve stimulation, TENS) for a period of 12 weeks, by use of clinical outcome criteria and EMG recordings.

[Pharmacological therapy of temporomandibular joint pain].

Pharmacological interventions in temporomandibular joint (TMJ) pain differ from corresponding therapeutic interventions of jaw muscle (myofascial) pain. An actual systematic literature search lists and evaluates available articles on randomised controlled trials for treatment of arthralgia of the TMJ. On the basis of the few available trial reports, non-steroidal anti-inflammatory drugs (NSAIDs) seem to be effective, but side effects and drug interactions need to be considered.

[The therapy of masticatory muscle pain with oral splints].

Myofascial masticatory muscle pain is the second most frequent pain-related complaint in the orofacial region. Like unspecific musculoskeletal pain in other body segments, masticatory muscle pain is characterised by a multifactorial aetiology. The aim of this article is to document the current knowledge about the therapy with oral splints.

The extent of the psychological impairment of prosthodontic outpatients at a German University Hospital.

Background: Psychological factors are not only important in patients with temporomandibular disorders (TMDs), but also in patients suffering from tooth loss and/or in those awaiting prosthodontic care with fixed or removable dentures as several authors emphasize. The purpose of the present prospective observational study was to compare prosthodontic outpatients of the Department of Prosthodontics at the University of Duesseldorf and patients seeking care at the TMD/Orofacial Pain Outpatient Clinic (TMD/OFPOC) at the same university with respect to sociodemographic data, self-reported somatic complaints, and psychological impairment.

Methods: A total of 234 patients received two self-administered questionnaires including the Symptom-Check-List.

[Practice-related diagnostic classification of orofacial pain].

In this article, a practical diagnostic classification of orofacial pain for use in the general dental practice is presented. In contrast to the detailed taxonomy proposed by Okeson (1995), this classification is limited to those pain conditions dentists are confronted with most frequently. Furthermore, the fundamental differences of somatic versus neuropathic pain, localized versus widespread pain, and acute versus chronic pain are emphasized.

Articulator-related registration--a simple concept for minimizing eccentric occlusal errors in the articulator.

Purpose: The purpose of this study was to develop an easy-to-use procedure for individual registration and to test its accuracy. Unlike common principles, the method should be based on a transfer of the articulator geometry to the patient.

Materials And Methods: The system consists of an articulator holding a bite plate in a standard position.