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Comparison of the fracture strengths of single-unit metal-ceramic and monolithic zirconium restorations in the molar region: a systematic review and meta-analysis.

Despite the success of monolithic zirconia restorations (MZ), metal-ceramic restorations (MC) are still considered the gold standard for fixed prosthetics in the posterior region. This systematic review and meta-analysis aimed to compare the fracture strengths of single-unit MC and MZ in the molar region. This review was based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA, 2020) statement. All articles were searched from the PubMed and Web of Science databases until November 18, 2022. All in vitro studies evaluating the fracture strengths of MC and MZ were a

Management of Fractured Fragment With Reattachment: A Case Report With 2-Year Follow-Up.

Fragment reattachment is the most conservative treatment approach for uncomplicated crown fractures, which enables the restoration of the original tooth structure and the preservation of the remaining tooth structure. A 15-year-old patient reported with an uncomplicated crown fracture of the maxillary left central incisor involving enamel and dentin. Pulp sensibility testing had a normal response and radiographic examination revealed no periapical pathology. The retrieved fractured fragment had good marginal adaptation. Following rehydration, fragment reattachment was performed under rubber da

Spontaneously healed horizontal root fracture in maxillary first premolar: report of a case.

Root fractures of the posterior teeth are rare and occur as a result of severe trauma. This study describes the horizontal root fracture of a maxillary first premolar. The fractured roots were discovered during a routine radiographic examination. The tooth was asymptomatic and responded positively to electric pulp testing. The patient reported accidental trauma, which occurred 14 years before. Our case is an example of spontaneously healed fractured roots. The interesting findings were that the healing was observed even in the presence of two roots, including preservation of the vitality of th

Self-drilling screws for the prevention of dental and skeletal injuries during open reduction and internal fixation of pediatric mandibular fractures.

Facial trauma in pediatric population predisposes the child to injury of both the developing skeleton and dentition. This article aims to highlight the experience of the authors through a case report, in using self-drilling screws for fixation of mandibular fractures in pediatric age group. The use of self-drilling screws minimizes the complications such as thermal and/or mechanical damage to the developing dentition and the bone. They also provide significant advantages including ease of availability and technique, superior anchorage with primary stability, and minimizing or avoiding permanen

Oral and dental diseases in a population of domestic ferrets (Mustela putorius furo).

OBJECTIVE: Domestic ferrets have been used for many purposes, but recently their popularity as companion animals has increased greatly. However, data on their oral and dental diseases are rare. The objective of this study was therefore to describe oral and dental diseases in a population of client-owned domestic ferrets. METHODS: In this cross-sectional clinical study, detailed oral and dental examination and full-mouth dental radiographs were performed in 57 client-owned ferrets. RESULTS: Variations in occlusion and number of roots per tooth were noted in comparison with previously publishe

Presence of a supernumerary root of the right mandibular second molar in a Staffordshire terrier: a case report.

The presence of a supernumerary root is an uncommon dental condition in canine patients, referring to an extra root that forms in a tooth beyond the standard number of roots that are typically expected for that specific tooth. It is a developmental anomaly most commonly observed in large-breed dogs, often as an incidental finding. These supernumerary roots may result from a disruption of the Hertwig's epithelial root sheath, which is responsible for root formation. A 3-year-old Staffordshire terrier presented for a complete oral examination under general anesthesia. The initial intraoral radio

Assessment of evidence from teeth and the alveolar bone of skulls.

A notable lack of agreement on a standardised criterion for representing changes in alveolar bone persists, which limits its application in forensic dentistry. This study aimed to describe the data on loss of tooth substance and alveolar bone in skulls. Dental and trabecular bone information from 28 skulls from the German Helmer skull collection was collected through dental charting, intraoral photographs taken with a DSLR camera (Nikon D5600, Nikon Corporation, Japan), and small radiographs obtained using a handheld dental X-ray device (Nomad Pro 2, Kavo Kerr, Biberach, Germany). Adobe Photos

Совпадение в полном тексте источника
… Table 4 A summary of the main discriminatory dental features of ante-peri or postmortem tooth fractures. … Liu M Wang W Forensic analysis of 41 traumatic tooth fracture Cases Fa Yi Xue Za Zhi 2020 36 66 68 10.12116/j.issn.1004-5619.2020.01.013 32250081 Liu, M. & Wang, W. Forensic analysis of 41 traumatic tooth fracture Cases. …

[Research on the cone-beam CT of the fracture morphology and location of a single oblique complicated crown-root fracture of maxillary incisors].

Objective: To study the morphological pattern of single oblique complex crown fracture and its relative location to periodontal hard tissues from a three-dimensional perspective by using cone-beam CT, which provides a more intuitive and comprehensive understanding for the pathological features and rules of single oblique complex crown fracture. Methods: Primary cone-beam CT images of 56 maxillary permanent anterior teeth with oblique complex crown root fractures were collected from the Department of Integrated Emergency Dental Care, Capital Medical University School of Stomatology during Janua

A long-term follow up of spontaneously healed root fractures later subjected to orthodontic forces - two case reports.

There is evidence that many dental injuries which result in root fractures may not require active treatment in cases where the coronal fragment is minimally displaced and does not exhibit clinical signs or symptoms. This paper discusses two individual cases where spontaneous root fracture healing was observed and this healing was apparently not compromised by later orthodontic tooth movement. The observation periods for the two cases were 13 and 18 years since the original root fractures occurred.

Feline Dental Implants: Long-Term Follow-up of Two Cases.

Dental implants have become an option for replacement of lost canine teeth in cats. Although cats appear to manage well after a canine extraction, complications such as lip entrapment can occur after maxillary canine tooth extraction. Even cats with a complicated crown fracture of the maxillary canine tooth that have had root canal therapy can develop lip entrapment. This can lead to painful lip ulcers and potential need for further dental treatment. Canine tooth replacement with a dental implant and prosthodontic crown is, in the authors' experience, a predictable option that can be offered t

Extremity fractures in children with neuromuscular disease.

This report discusses the occurrence and management of fractures seen in 30 children with neuromuscular disorders. Twenty fractures were seen in 17 ambulatory patients, ages 5 to 16. Twelve of the patients in this group had Duchenne muscular dystrophy (DMD), 3 had spinal muscular atrophy (SMA) and 2 had Charcot--Marie--Tooth (CMT) disease. Treatment consists of reduction of the fractures followed by immobilization of the extremities; however, continuation of everyday activities, including ambulation, should be emphasized. In fact, five patients ceased walking as a direct result of immobilizati

Tooth fragments lodged in the lower lip after traumatic dental injury: a case report.

Dental fractures are common trauma complications in the oral cavity. The efficient diagnosis and treatment of dental injury are important elements in clinical dentistry. This article describes a case study of trauma in central maxillary incisors with tooth fragments lodged in the lower lip. Radiographs of the soft structures proved themselves as an important tool in the detection and identification of occult tooth fragments, and play an important role in the establishment of the treatment to be adopted. Also, case follow-up is of fundamental significance in the preservation and maintenance of

Trauma and dentinogenesis: a case report.

INTRODUCTION: After a traumatic injury to the upper central incisors of a 7-year-old patient, avulsion of tooth #9 and pulp exposure after crown fracture of tooth #8 were managed. METHODS: After immediate replacement of tooth #9 in its socket, teeth were splinted for 3 weeks. No endodontic treatment was performed on tooth #9, but pulp capping was performed with mineral trioxide aggregate (Pro Root MTA; Dentsply Maillefer, Ballaigues, Switzerland) on #8, and both teeth were restored with composite resin. The teeth were monitored every 3 months for 2 years. RESULTS: At 24 months, both teeth re

A retrospective comparative study of maxillofacial injury patterns caused by electric scooters and bicycles.

BACKGROUND/AIM: The emergence of shared stand-up electric scooters has led to an increase in their usage and, subsequently, an increase in the incidence of maxillofacial trauma. This study aimed to investigate the trauma pattern associated with the use of stand-up electric scooters compared with that related to the use of bicycles, which was a popular mode of personal mobility before the emergence of stand-up electric scooters. MATERIALS AND METHODS: This study investigated the medical records of patients who visited Wonju Christian Hospital for maxillofacial trauma due to the use of stand-up

Delayed removal of a maxillary third molar accidentally displaced into the infratemporal fossa.

The removal of an impacted maxillary third molar is an easy procedure for an oral and maxillofacial surgeon. The most commonly seen complications associated with this type of surgery are excessive hemorrhage, infection, pain, swelling, trismus, and root fractures. Although rarely encountered, unexpected complications may also arise during this procedure, such as the displacement of the tooth into an anatomic space. In this article, a case of a maxillary left third molar accidentally displaced into the infratemporal fossa is presented, and the delayed removal of the tooth after 3 weeks from the

The effect of dentine location and tubule orientation on the bond strengths between resin and dentine.

This study determined the influence of dentine structure on the micro-tensile bond strengths between resin and dentine of two different dentine adhesive systems (Single Bond, 3M Dental Products, St Paul, MN; MF-102 (experimental self-etching primer), GC Corporation, Tokyo, Japan). The study was separated into two main parts: bond strength measurement and investigation of the bonding interface. Twenty-two human premolars were used for the bond strength measurement. Each tooth was cut vertically, separating the tooth into mesio-distal halves. One half of the tooth was used to bond to a surface p

Dens Evaginatus: A Problem-Based Approach.

Dens evaginatus is an uncommon developmental anomaly of human dentition characterized by the presence of tubercle on the occlusal surface of mandibular premolars and lingual surface of anterior teeth. Due to occlusal trauma this tubercle tends to fracture thus exposing the pathway to the pulp chamber of teeth. This case report is about the presentation of dens evaginatus in mandibular premolars bilaterally; among them tooth 44 was associated with chronic apical periodontitis. Fractured tubercle of three premolars was sealed with composite resin. Root canal treatment was performed with tooth 44

Ketorolac Use and Its Association With Craniofacial Fracture Healing Complications: Propensity Score-Matched Analyses.

BACKGROUND: Nonunion is a major complication following craniofacial fracture repair. While ketorolac has been associated with impaired bone healing in other fractures, its effect on craniofacial bones remains unclear. This study evaluated the association between postoperative ketorolac use and nonunion after craniofacial fracture repair. METHODS: The TriNetX database was used to identify patients who underwent orbital, nasal, zygomatic, maxillary, and mandibular fracture repair. For each type of fracture, patients were classified into ketorolac-exposed and unexposed (control) cohorts. Propens

Influence of sharpening filters on the detection of root fractures using low-dose cone-beam computed tomography.

OBJECTIVES: To evaluate the influence of sharpening filters in the detection of root fractures using low-dose cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Eighty-four CBCT volumes acquired at three mA levels of 28 teeth inserted in the dental socket of dry human skull were selected from a previous study. The teeth were divided into four groups according to the presence and absence of root fracture and endodontic filling. Five radiologists evaluated all CBCT volumes for the presence of root fracture with and without the application of "Sharpen 1x" and "Sharpen 2x" filters in On

[Different multidisciplinary approaches of two traumatic teeth fractures in the esthetic zone: a case report].

In this article, different methods to deal with teeth fractures were discussed by presenting a case of traumatic crown-root fracture in the anterior esthetic zone. The traumatic crown-root fracture is a common problem in clinic. When a fracture line locates in close proximity to or below the alveolar bone crest, the fracture most likely involve the junctional epithelium and the connective tissue attachment. This type of fracture becomes a challenge for restorative dentists because it involves biologic, functional, and esthetic considerations, especially when the fracture occurs in an esthetic