Jens Christoph Türp

University Center for Dental Medicine Basel · Department of Oral Health & Medicine, Division of Temporomandibular Disorders and Orofacial Pain

The present study investigated to what extent a systematic evaluation of electronic condylar motion recordings leads to reproducible results in different examiners. The study was based on the anonymized condylar motion recordings of 20 patients (Cadiax compact II system). These were recruited consecutively from the examinations in a center speciali...

Critique of the Phase I - Phase II treatment strategy for TM disorders

Objective: This study aimed to investigate whether the sex steroid precursor hormone dehydroepiandrosterone sulfate (DHEA-S), sex hormone-binding globulin (SHBG), and testosterone (TT) are associated with temporomandibular (TM) pain on palpation in male adolescents. Methods: Out of the LIFE Child study dataset containing 1,022 children and adole...

Background: Evaluating occlusal contacts during maximum intercuspation is one of the requirements for guiding clinicians during occlusal corrections and has been a topic of considerable importance for researchers over many decades. Objective: This systematized review intends to evaluate the average number of occlusal contacts present in dentate...

Background: Many patients with temporomandibular disorders (TMD) find it difficult to undergo dental care due to challenges caused by their condition, previous temporomandibular joint surgery or invasive dental procedures, and the impact of comorbid conditions. Managing routine dental care for some patients with TMD can be seen as challenging by s...

Objectives The present study investigated to what extent systematic evaluation of electronic condylar motion recordings based on the Diagnostic Criteria for Dysfunction (DCD) leads to reproducible results in different examiners. Methods The study was based on the anonymized condylar motion recordings of 20 patients. These were recruited consecutiv...

In this letter to the editor, we respond to a recent article by colleagues Fornai, Tester, Parlett, Basili, and Costa that is devoted entirely to criticizing our article entitled "Centric relation critically revisited – What are the clinical implications? (J Oral Rehabil 2021;48:1050‐1055). We conclude that the objections of the above authors are u...

Seit seinem ersten Erscheinen im Jahre 1994 hat sich das Curriculum Prothetik zu einem echten „Renner“ unter den deutschsprachigen Prothetikfachbüchern entwickelt. Bei Studierenden, Zahnärzt*innen und Zahntechniker*innen erfreut es sich gleichermaßen großer Beliebtheit. Als hervorragend lesbare und durchgehend bebilderte Gesamtdarstellung des Fache...

We conducted a case study with one volunteer and a recording setup to detect sounds induced by the actions: jaw clenching, tooth grinding, reading, eating, and drinking. The setup consisted of two in-ear microphones, where the left ear was semi-occluded with a commercially available earpiece and the right ear was occluded with a mouldable silicon e...

Introduction The masseter muscle is considered to be bilayered, consisting of a superficial and a deep part. However, a few historical texts mention the possible existence of a third layer as well, but they are extremely inconsistent as to its position. Here we performed an anatomical study to clarify the presence and morphological characteristics...

Am 30. Juni 2021 veröffentlichte der Medienkonzern Clarivate™ in seinen Journal Citation Reports für das Jahr 2020 die Ranglisten der wissenschaftlichen Fachzeitschriften mit Impact-Faktor. Im Berichtsjahr weisen 12.279 der 20.932 berücksichtigten Zeitschriften einen Journal Impact Factor (JIF) auf. Im Beitrag werden die aktuellen JIF der zahnmedi...

Background The main objective of this investigation was to determine on panoramic radiographs the prevalence of macroscopically visible alterations (bone apposition in combination with directional change) in the mandibular angle region in bruxism patients. Another aim was to describe and detect different morphological characteristics of the jaw ang...

Abstract Purpose of the article: Centric relation is a dental term that has undergone many alterations over the years, which in turn have led to significant clinical controversies. These continuing changes in the meaning of the term CR have not only led to confusion, but they also have resulted in a variety of unnecessary diagnostic and therapeuti...

Background: The main objective of this investigation was to determine on panoramic radiographs the prevalence of macroscopically visible alterations (bone apposition in combination with directional change) in the mandibular angle region in bruxism patients. Another aim was to describe and detect different morphological characteristics of the jaw an...

Die unter dem Begriff „Bruxismus“ zusammengefassten Parafunktionen Zähneknirschen und Kieferpressen sind so alt wie die Menschheit. In der Bevölkerung sind sie weit verbreitet. Einerseits dienen diese Unterkieferaktivitäten dem Stressabbau, andererseits können sie die Zahnhartsubstanzen schädigen und zu Verspannungen und Schmerzen im Bereich der Ka...

Purpose of the article Centric relation is a dental term that has undergone many alterations over the years, which in turn have led to significant clinical controversies. These continuing changes in the meaning of the term CR have not only led to confusion, but they also have resulted in a variety of unnecessary diagnostic and therapeutic procedure...

This article is dedicated to Prof Dr Rudolf Slavicek (Vienna), one of the great free thinkers and pioneer of the theory of function in modern dentistry. The human temporomandibular joints are characterized by an extraordinary mobility when compared with those of other species. This mobility allows the mandible to carry out a wide range of movement...

This is an interview with the legendary Prof. Dr. Rudolf Slavicek (Vienna), one of the great free thinkers and pioneer of the theory of mandibular function in clinical dentistry, conducted at his home in Vienna on September 3, 2020.

Background Since 2017, the diagnosis of patients with orofacial pain at the University Center for Dental Medicine Basel has been supplemented by using standardized image graphics (Dolografie® [Affolter/Rüfenacht, Bern, Switzerland]). For this purpose, patients select from a set of 34 cards those that visually best match their pain and then explain...

Problem: When patients complain about pronounced physical pain without sufficient somatic findings to substantiate them, practitioners sometimes refer to these patients as being "problem patients" or "difficult patients". When such an attribution is assigned, it usually denotes a difficult interpersonal relationship between practitioners and patien...

Problem: Wenn ein Patient über ausgeprägte körperliche Beschwerden klagt, ohne dass hinreichende somatische Befunde als Erklärung dienen können, wird dieser von Seiten des Behandlers bisweilen als "Problempatient" oder "schwieriger Patient" bezeichnet. Jedoch handelt es sich bei einer solchen Zuschreibung meist um eine schwierige interpersonale Bez...

Background. Since 2017, in the University Center for Dental Medicine Basel the diagnosis of patients with orofacial pain has been supplemented by using standardized image graphics (Dolografie®). For this purpose, patients select from a set of 34 cards those that visually best match their pain and then explain the reason for their choice. Objectives...

Dieser Beitrag ist eine Hommage an meine Geburtsstadt Duisburg und eine Reminiszenz an meine Schulzeit im altehrwürdigen Steinbart-Gymnasium in Duisburg, eingebettet in eine bunte Geschichte, in der mein früherer Französisch- und Literatur/Theater-Lehrer Hansi Brune ebenso eine Rolle spielt wie Kriminalhauptkommissar Horst Schimanski, die französis...

Neben der aktuellen Rangliste der 91 Zeitschriften mit einem Journal Impact Factor für das Jahr 2019 werden unter anderem die Auf- und Absteiger des Jahres sowie der Median-Impact-Faktor vorgestellt. Letzerer erlaubt einen Gesamtvergleich des Korpus der zahnmedizinischen Fachzeitschriften mit demjenigen der 235 anderen wissenschaftlichen Fachdiszip...

This analysis was conducted to assess the impact of Coca-Cola on orthodontic materials compared to that of other fluids. Electronical searches were carried out in PubMed, Livivo, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov, supplemented by manual searches in the reference lists of the articles selected for full text evalu...

At the beginning of summer 2020, the names and rankings of the scientific journals with a Journal Impact Factor (JIF) for the year 2019 were released (InCites Journal Citation Reports, Clarivate Analytics). Presently, 12,827 journals have a JIF value. In this article, the current JIFs from dentistry are presented and compared to the scientific jour...

Einleitung: Die Herstellung einer Stabilisierungsschiene (Michigan-Schiene) für einen an einer Myoarthropathie (MAP) leidenden zahnlosen Patienten ist eine anspruchsvol-le Aufgabe. In diesem Artikel wird eine Totalprothesen-Mi-chigan-Schiene beschrieben, bei der eine herausnehmbare Oberkieferprothese und eine Stabilisierungsschiene aus einem einzig...

Assessment of mandibular mobility is an integral part of many dental examinations. Yet, information on the maximum range of mandibular motion in large groups of patients with temporomandibular disorders (TMDs) is limited. Therefore, we analyzed the corresponding data of 500 TMD patients who had presented at the University Center for Dental Medicin...

Seit einigen Jahren sind wissenschaft-lich tätige Personen mit einem neuen Phänomen konfrontiert: Die Belästi-gung durch (stets englischsprachige) E-Mails, in denen man-meist nach einer freundlichen Begrüßung (Tab. 1)-aufgefordert wird, einen Beitrag in einer in der Mail genannten Zeit-schrift zu veröffentlichen (Tab. 2). Die Titel der sich selbst...

Wissenschaftlich tätige Personen sind seit einigen Jahren Adressaten von E-Mails, in denen für die Teilnahme an zwei- oder drei-, bisweilen auch viertägigen Fachkonferenzen geworben wird. Nicht selten wird den Angeschriebenen angeboten, als Referent oder Vorsitzender aufzutreten. Die Fachliteratur zu diesem Thema ist überschaubar, da limitiert. Bei...

For some years now, scientifically active people have been the recipients of e-mails that advertise for their participation in two-, three- and sometimes even four-day conferences. It is not uncommon for the recipients to be offered the opportunity to attend as speakers or chairpersons. Specialist literature on this topic can easily be overviewed,...

For some years now, people working in science have been confronted with a new phenomenon: The annoyance caused by (exclusively English-language) e-mails in which the recipients are asked – usually after a friendly greeting – to publish an article in a journal mentioned in the mail. The titles of these journals are largely unknown in the dental/medi...

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 trigeminal nerve innervates the face, and tumours along its intracranial way as well as pe...

Background: The diagnosis and management of patients suffering from occlusal dysesthesia (OD) remains 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 aff...

Background Temporomandibular disorders (TMDs) are typically characterized by pain in the masticatory muscles and temporomandibular joints (TMJs) and by limitation of mandibular mobility. In June 2019, the German Society of Craniomandibular Function and Disorders presented a screening tool to identify individuals with TMDs. The assessment tool consi...

Objectives: The objective of this systematic review was (a) to establish the prevalence of Temporomandibular Disorders (TMD) in patients seeking orthodontic treatment and (b) to determine the association between the presence of TMD and sex, age as well as malocclusion. Methods: A systematic literature search was performed according to PRISMA gui...

Die Leitlinie geht auf folgende konsentierte Schlüsselfragen ein, die basierend auf einer systematischen Literaturrecherche und der sich anschließenden Bewertung und Auswertung der identifizierten relevanten Studienartikel beantwortet werden sollten. Schlüsselfrage 1 Welche diagnostischen Maßnahmen begründen die Diagnosen Schlaf- und Wachbruxismus?...

Health care-associated infections may not only occur in a hospital setting, but also in dental clinics. Insufficient environmental decontamination could be one of the risk factors. In this retrospective study, we documented and analyzed the results of surface microbial contamination in a dental university-based department over an observation period...

The aim of this systematic review (SR) was to determine the association between temporomandibular disorders (TMDs) and pubertal development. Due to the inadequacy of the conventional PICO (Population, Interventions, Comparisons and Outcome) format used for intervention‐based SRs, the Joanna Briggs Institute's guidelines for synthesizing evidence re...

Objectives: The aim of this study is to investigate the effect of clinical experience and educational background on clinical decision-making of dentists presented with two prosthodontic cases. Methods: A questionnaire-based survey was performed among 66 prosthodontists who were divided into two groups. The first group included clinicians from Be...

The aim of the present study was to summarize the risk factors for bruxism that were identified by a systematic search of the literature published between 2007 and 2016. Depending on the size of the odds ratios (ORs) and the lower limit of the 95% confidence intervals indicated by the reports, four risk categories were differentiated. Among others,...

The recently published Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) Axis I, which is recommended for use in clinical and research settings, has provided an update of the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). The authors of the DC/TMD based their publication on the results of a Validation Project (20...

Seit Beginn der Menschheitsgeschichte bis in die Frühe Neuzeit unterlag das Gebiss der Menschen physiologisch bedingten Abnutzungserscheinungen. In der heutigen Zahnmedizin werden jedoch alle Hartgewebeveränderungen nach dem Durchbruch der Zähne als pathologisch bezeichnet. Dieser Beitrag problematisiert die Okklusion vor dem Hintergrund neuer Erke...

en Various forms of body modification may be observed in sub‐Saharan Africa. Hypotheses and theories of scarification and tribal marking in sub‐Saharan Africa are described, plus the procedure of scarification, examples from several African countries, assumed effects in prevention and treatment of diseases, and the medical risks resulting from unst...

Das Kapitel widmet sich den Kaumuskel- und Kiefergelenkschmerzen. Myoarthropathische Schmerzen weisen in der Bevölkerung eine relativ hohe Prävalenz auf, Frauen überwiegen. Die Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) unterscheiden 6 somatische Schmerzdiagnosen. Bei vielen Patienten liegen multilokuläre Schmerzen vor, die mit Ga...

Background Clinical decision-making and prognostic statements in individuals with manifest or suspected temporomandibular disorders (TMDs) may involve assessment of (a) the position of articular disc relative to the mandibular condyle, (b) the location of the condyle relative to the temporal joint surfaces, and (c) the depth of the glenoid fossa of...

Objectives This study evaluated the prevalence of jaw pain as a local, regional, or widespread pain condition and its association with psychosocial variables in a large representative group of the general population from all regions in Germany. Methods In two representative samples consisting of 2524 and 2515 subjects, respectively, the 7-day and 3...

The custom of wearing labrets has a long tradition. Labrets appeared independently several thousand years ago in various culture groups in Asia, Europe, Africa and the Americas. Today, apart from diverse body modifications as increasingly practiced in western civilisations, lip plates and plugs are found among a small number of tribal groups only i...

Background Temporomandibular disorders (TMDs) relate to the masticatory muscles and the temporomandibular joints. Misinformation on this topic is widespread. Methods An introduction to the current state of TMD diagnostics and therapy is given based on an analysis of the recent literature in the field. Results The internationally recommended class...

This paper reviews the practice and ritual traditions of infant oral mutilation, drawing on a literature search in PubMed and Google Scholar, historical reports, relevant textbooks, NGO materials and personal observations of the authors. This article is protected by copyright. All rights reserved.

Aim: To investigate whether the fully digital, plasterless fabrication of clinically usable Michigan splints can be accomplished in a time- and cost-efficient manner. Materials and methods: Digital scans of the maxillary and mandibular arches of 10 subjects were acquired with an intraoral scanner (3Shape, Copenhagen) and used to generate virtual...

Non-communicable diseases (NCDs), such as cardiovascular diseases, chronic respiratory diseases, cancers, and diabetes mellitus, are responsible for most deaths worldwide. In view of the rising prevalence and the long-term consequences of NCDs, their prevention is a public health priority. Dentistry plays an important role in this endeavor. Since o...

Strategies for recruitment of masseter muscle motor units (MUs), provoked by constant bite force, for different vertical jaw relations have not previously been investigated. The objective of this study was to analyse the effect of small changes in vertical jaw relation on MU recruitment behaviour in different regions of the masseter during feedback...

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...

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Cone-Beam Computed Tomography (CBCT) has been introduced in 1998. This radiological imaging procedure has been provided for dentistry and is comparable to computed tomography (CT) in medicine. It is expected that CBCT will have the same success in dental diagnostic imaging as computed tomography had in medicine. Just as CT is responsible for a sign...

The method of recording mandibular movements was first introduced in dentistry as a tool for treatment planning decades ago. The objective is to capture condylar movement data for patient-specific programming of articulators with individualized adjustment. Apart from that, current systems now enable the clinician to analyze the acquired mandibular/...

This article deals with the question of the mandibular con-dylar position of symptom-free adults in maximum intercus-pation. To this purpose, and as sequel to a study by Stamm et al (J Orofac Orthop 2004;65:280–289), scientific literature published between January 2002 and December 2012 on this topic was collated and analyzed. The inclusion criteri...

A self-test questionnaire has been provided in the internet and in some dental offices for some time now. By using this questionnaire, interested individuals may assess whether they have a temporomandibular disorder (TMD) which might require therapy. It is the aim of this article to examine whether the 11 questions are apt to reliably identify pati...

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. It is sh...

Besides the different forms of odontalgia, myalgias of the masticatory muscles are the most frequent noninfectious complaints in the orofacial region. After summarizing the recommendations set forth by the Interdisciplinary Working Group of Orofacial Pain within the German Chapter of the IASP (German Pain Society), we present the current state of k...

Proposal for a curriculum addressing the topic of temporomandibular disorders in postgraduate orthodontic programsBackground Currently, 69 North American institutions offer postgraduate programs in orthodontics. The results of a questionnaire survey, in which 46 institutions participated, revealed that the subjects of occlusion, temporomandibular j...

Die in der Zahnmedizin traditionell verankerte Auffassung, für eine gute Kaufunktion sei das Vorhandensein aller Seitenzähne erforderlich, hat sich in den vergangenen vier Dekaden gewandelt. Wie anhand einer systematischen Literaturrecherche gezeigt wird, gibt es inzwischen ausreichende Belege dafür, dass eine auf die beiden Prämolaren verkürzte Za...