Decidous teeth

AIM: The purpose of this study was to evaluate and compare the canal transportation tendencies and centering ability of the TruNatomy shaper (TN) and XP-endo shaper (XPS) rotary systems in oval-shaped canals with moderate root curvature (15°-25°), using cone-beam computed tomography (CBCT) imaging. MATERIALS AND METHODS: Sixty single-rooted permanent human teeth were chosen after considering the inclusion and exclusion criteria. The teeth were divided into two groups ( n = 30)...

BACKGROUND: Clinicians agree that obtaining and retaining good treatment results for missing maxillary central incisors owing to trauma is not easy. Management of adult patients with permanent maxillary central incisor loss who visit the clinic with high expectations for aesthetics and function pose a significant diagnostic dilemma. Therefore, esthetic and functional outcomes should be taken into consideration when deciding the proper treatment method. The treatment described in this study aimed to reestablish smile esthetics by proposing an effective multidisciplinary clinical approach that includes orthodontic-prosthetic-periodontal procedures, optimally reduced lip protrusion, center dental midlines, and establishment of stable occlusion...

Caries prevention is essential for oral hygiene. A fully automated procedure that reduces human labor and human error is needed. This paper presents a fully automated method that segments tooth regions of interest from a panoramic radiograph to diagnose caries. A patient's panoramic oral radiograph, which can be taken at any dental facility, is first segmented into several segments of individual teeth. Then, informative features are extracted from the teeth using a pre-trained deep learning network such as VGG, Resnet, or Xception...

BACKGROUND: Digital intraoral scanning, although developing rapidly, is rarely used in occlusal reconstruction. To compensate for the technical drawbacks of current occlusal reconstruction techniques, such as time consumption and high technical requirements, digital intraoral scanning can be used in clinics. This report aims to provide a way of selecting the most suitable maxillo-mandibular relationship (MMR) during recovery. CASE SUMMARY: A 68-year-old man with severely worn posterior teeth underwent occlusal reconstruction with fixed prosthesis using digital intraoral scanning...

INTRODUCTION: This review summarizes the available recent literature on different mechanisms and parameters of pulsed ultrasound (US) that have been used during orthodontic treatments to prevent and repair root resorption. AREAS COVERED: A literature search was conducted between January (2002) and September (2022) in the following databases: PubMed, Google-Scholar, Embase and The-Cochrane-Library. After exclusions, a total of 19 papers were included in the present review...

OBJECTIVE: The present study aimed to evaluate the influence of different access cavity designs on the biomechanical behaviour of a three-rooted maxillary first premolar using finite element analysis (FEA). METHODS: Three experimental FEA models were generated: the intact tooth (IT) model, the traditional access cavity (TAC) model, and the conservative access cavity (CAC) model. In both TAC and CAC models, root canals preparation was simulated as follows: the mesiobuccal and distobuccal canals with a final tip size of 30 and taper of 0...

The article presents a case of bimaxillary dentoalveolar protrusion treated by distalizing the upper and lower teeth, using anchorage from mini implants. A 16-year-old male patient presented with severe upper and lower incisor proclination with protruding lips and a convex profile, with a background of bimaxillary dentoalveolar protrusion. Instead of having four premolars extracted, retraction of the dentition was decided with absolute anchorage, provided by mini implants. In order to carry out the procedure in one stage, four mini-implants were inserted as close to the root of the 1st molars as possible...

BACKGROUND: Kissing molars (KMs) is defined as a state in which the apex of two impacted molars face opposite directions and the occlusal surfaces touch each other and the crown is in one follicle. Class III KMs have been reported previously; however, reports on class III KMs in young people (< 18 years of age) are limited. CASE PRESENTATION: Here, we present the case of KMs class III confirmed at an early age, supported by a review of the literature...

Dental implants offer a predictable solution for the replacement of missing dentition. This report describes the case of a patient who underwent dental implant surgery several years ago but due to negligence on the part of previous dentist, her implant pushed into the maxillary sinus. The patient presented with vague pain and swelling in the right maxillary region. Orthopantomogram (OPG) showed that the implant was lying in the right maxillary sinus which the patient had no clue of. It was decided to retrieve the implant and later restore the missing teeth for definitive function and aesthetics...

PURPOSES: This study aimed to contribute to understanding the factors affecting the time of traction treatment of impacted dilacerated maxillary central incisors. METHODS: This retrospective study included children aged 8 - 11 years with a history of trauma, who applied to the pediatric dentistry clinics of Marmara University, School of Dentistry, between December 2013 and December 2019, and were treated for unilateral impacted dilacerated maxillary upper central incisors...

Multiple supernumerary teeth in the central incisor region are an uncommon occurrence; the most frequently occurring type of supernumerary teeth are mesiodens. A 10-year-old male had reported to Sharad Pawar Dental College with the chief complaint of extra teeth. An intraoral examination revealed the presence of two labially placed incisors and two palatally placed incisors at a transitional phase of dentition. During a radiographic examination, the maxillary occlusal view revealed four incisors with similar morphology...

Selecting an appropriate vital pulp therapy (VPT) for primary teeth with reversible pulpitis can sometimes be confusing for clinicians. Encouragingly, continuous developments in capping materials with bioactive properties help the selection of less-invasive treatments. This non-randomized clinical trial aimed to assess the clinical and radiographic success rates of indirect pulp treatment (IPT), direct pulp capping (DPC), partial pulpotomy (PP) and pulpotomy in primary molars utilizing TheraCal PT over a 12-month period...

INTRODUCTION: Down syndrome (DS), an easily recognized congenital disease, is associated with a high prevalence of dental anomalies. Therefore, special dental care is required. CASE PRESENTATION: This case report described the minimally invasive prosthetic rehabilitation of a 31-year-old female patient with DS. Prompt diagnosis, consultation with physicians and family, and accurate medical history were needed, and relevant dental, medical, mental, and behavioral factors were considered...

BACKGROUND: The aim of the current study was to propose a classification of impacted cuspids, and bicuspids based on their spatial position in the maxillary and mandibular arches and their radiological appearance. METHODS: This prospective study was conducted including all the patients who reported to our center for extractions, orthodontic treatment, missing permanent cuspids/bicuspids, removal of third molar teeth. All patients who reported within a time frame of 6 months were enrolled in the study...

BACKGROUND: This article reviews the most salient lessons learned from a large, multisite, 3-year observational study of posterior teeth with cracks conducted by The National Dental Practice-Based Research Network. TYPES OF STUDIES REVIEWED: Eight articles published over a 6-year period (2017-2022) describing clinical characteristics of posterior teeth with cracks and their treatment and outcomes are reviewed and discussed to answer 3 common questions faced by oral health care clinicians: Which cracked teeth will get worse? When should practitioners intervene? What is the best treatment? RESULTS: Although cracks in teeth are prevalent, few will fracture (3%) or show crack progression in 3 years (12%)...

OBJECTIVE: The aim is to investigate the causes of dental fear and its impact on dental attendance behaviors. MATERIALS AND METHODS: A short questionnaire was distributed to participants at different dental clinics and by emails to evaluate their perceptions of dental fear. The questionnaire contained questions related to gender and age group. The remaining part of the questionnaire investigated the causes of dental fear and its impact on dental visits. RESULTS: A total of 2264 participants aged 18 years and above agreed to complete the questionnaire...

The term bioactivity is being increasingly used in medicine and dentistry. Due to its positive connotation, it is frequently utilised for advertising dental restorative materials. However, there is confusion about what the term means, and concerns have been raised about its potential overuse. Therefore, FDI decided to publish a Policy Statement about the bioactivity of dental restorative materials to clarify the term and provide some caveats for its use in advertising. Background information for this Policy Statement was taken from the current literature, mainly from the PubMed database and the internet...

OBJECTIVES: To give an overview of the evidence on the associations between oral condition factors and masticatory performance of adults, and to evaluate the direction and level of the associations. DATA/SOURCES: Medline (PubMed), Embase (Ovid) and CINAHL Plus (EBSCOhost) were searched up to May 2022 for cross-sectional studies on oral conditions and masticatory performance in adults. Methodological quality of the included studies was independently evaluated based on the Joanna Briggs Institute critical appraisal checklist for analytical cross-sectional studies...

Background and Objectives : The aim of this study was to retrospectively analyze the duration of treatment and the number of dental radiographs taken during endodontic treatment (endo-t) of young permanent teeth (YPT). Materials and Methods : Age, gender, affected tooth number, apex status, duration of treatment and dental radiographs taken during this period were retrospectively evaluated in pediatric patients aged 6-15 years who presented to the pedodontic department for endo-t of anterior YPT. Data were analyzed with Kruskal Wallis H, Dunn and Pearson chi-square tests...

Data sources Electronic search through PubMed (Medline), CENTRAL (Cochrane) and Embase databases in November 2021. Grey literature searches (OpenGrey, Pro-Quest, National research register and the register of clinical studies hosted by the US National Institute of Health).Study selection Randomised in vivo clinical trials (RCTs) with at least two-year follow-ups, that compared the longevity of adhesively luted indirect ceramic restorations against conventionally cemented indirect metal restorations. The teeth studies had to be about single tooth restorations, on premolars or molars, with sufficient information available for extraction; eg outcome assessment, reason for failure...