A cone-beam computed tomography study of canalis sinuosus and its accessory canals in a South African population.

Objectives: Canalis sinuosus (CS) is a clinically relevant structure in the anterior maxilla. The present study aimed to determine the prevalence and distribution of CS and its accessory canals (ACs) in the South African population and describe its anatomical variations.

Methods: In total, 500 cone-beam computed tomography (CBCT) scans of the anterior maxilla were assessed for prevalence, sidedness, diameter, and distribution of CS.

Investigation of mandibular second molar root and canal morphology in a Black South African population using cone-beam computed tomography and two classification systems.

Purpose: To investigate the root and canal morphology of mandibular second molars, including anatomical variations, in a Black South African population using two classification systems.

Methods: Cone-beam computed tomography images of 386 teeth were evaluated. The number of roots and canal configurations were categorized using the classifications of Vertucci (with modifications by Sert and Bayirli) and Ahmed et al.

Assessment of the Prevalence of Radix Entomolaris and Distolingual Canal in Mandibular First Molars in 15 Countries: A Multinational Cross-sectional Study with Meta-analysis.

Aim: The aim of this study was two-folded: i) to assess the prevalence of Distolingual Canal (DLC) and Radix Entomolaris (RE) in Mandibular First Molars (M1Ms), using Cone Beam Computed Tomography (CBCT) images and ii) to assess the impact of sociodemographic factors on the prevalence of these conditions worldwide.

Methods: CBCT images were scanned retrospectively and the ones including bilateral M1Ms were included in the study. The evaluation was performed by 1 researcher in each country, trained with CBCT technology.

In vitro comparison of the physical and mechanical properties of an ormocer with an ormocer-based composite and a nanocomposite restorative material.

Objectives: To compare an ormocer with a first generation ormocer-based composite and a nanocomposite in terms of surface roughness, surface hardness, and microleakage.

Materials And Methods: An ormocer (Admira Fusion), a first generation ormocer-based composite (Admira) and a nanocomposite (Filtek Z350 XT) were prepared strictly in accordance with the manufacturer's instruction and recommendation to provide optimal material properties. Twelve disk samples of each material were evaluated to assess both surface roughness and surface hardness.

Resolution of Apical Periodontitis-induced Mental Nerve Paresthesia Through Nonsurgical Endodontic Retreatment: A Case Report.

Paresthesia is a potential consequence of unsuccessful root canal treatment. Persistent infection resulting in apical periodontitis may enlarge sufficiently to involve the mental neurovascular bundle. The case presented in this report was referred for endodontic evaluation with a chief complaint of discomfort on mastication and persistent numbness of the lower left lip.

Apexification of dens evaginatus in a mandibular premolar: A case report.

Key Clinical Message: Dens evaginatus is an uncommon dental anomaly presenting on mandibular premolar teeth. Affected teeth are difficult to diagnose and manage, and often demonstrate immature apices requiring complex endodontic treatment approaches.

Abstract: Dens evaginatus (DE) is an uncommon anomaly affecting mandibular premolars, frequently requiring endodontic intervention.

Assessment of the Prevalence of Middle Mesial Canal in Mandibular First Molar: A Multinational Cross-sectional Study with Meta-analysis.

Background: An additional canal found in the mandibular first molar (M1M) is the middle mesial canal (MMC), which is often missed during root canal treatment. In this study, the prevalence of MMC in M1M on cone-beam computed tomography (CBCT) images was evaluated in 15 countries, along with the effect of some demographic factors on its prevalence.

Methods: Deidentified CBCT images were scanned retrospectively, and the ones including bilateral M1Ms were included in the study.

Root and canal morphology of maxillary second molars in a Black South African subpopulation using cone-beam computed tomography and two classifications.

This study investigated the root and canal morphology of maxillary second molars in a Black South African population using high-resolution cone-beam computed tomography. In total, 386 maxillary second molar teeth were evaluated and described according to the classifications of Vertucci (with the additions of Sert and Bayirli), as well as Ahmed et al. Root number, fusions and canal morphology were recorded.

A study of mandibular premolar root and canal morphology in a Black South African population using cone-beam computed tomography and two classification systems.

Purpose: An investigation of the configurations of mandibular premolar roots and canals in a population of Black South Africans.

Methods: Cone-beam computed tomography analysis of 772 mandibular premolars was performed, and the premolars were classified according to the systems proposed by Vertucci and Ahmed et al. Root number, canal morphology, age, and sex were recorded.

Root and canal morphology of the permanent anterior dentition in a Black South African population using cone-beam computed tomography and two classification systems.

Purpose: This study investigated the root and canal morphology of the permanent anterior dentition in a Black South African population.

Methods: In total 2,343 permanent anterior teeth were evaluated using cone-beam computed tomography images and described according to the Vertucci and Ahmed et al. classifications.

Double Gemination or Fusion of a Permanent Mandibular Second Molar: A Case Report.

Gemination and fusion are developmental conditions affecting the shape of teeth in both primary and permanent dentition. A 12-year-old girl presented for clinical assessment and the examination revealed an unusually shaped mandibular right second molar with irreversible pulpitis. Correlation of the intraoral and radiological appearance of this tooth suggested a diagnosis of either double gemination or fusion.

Root and canal configurations of mandibular first molars in a South African subpopulation.

Purpose: This study investigated root number and canal configurations, including morphological variations, of mandibular first molars in a subpopulation of South Africans.

Methods: Two calibrated examiners retrospectively evaluated 371 mandibular first molars by using high-resolution cone-beam CT images and the Vertucci classification system with the additions of Sert and Bayirli. Internal and external configurations were recorded, and correlations of sex and age with root number and canal configuration were determined with the chi-square and Fisher exact tests (P < 0.

Endodontic treatment of dentin dysplasia type I D.

Dentin dysplasia (DD) Type I is a developmental condition affecting dentin, inherited in an autosomal-dominant pattern or occurring due to a new mutation. Whilst the crowns of DD Type I affected teeth appear clinically normal, the roots are blunt and shortened. Pulp necrosis and periapical pathoses may be seen in the absence of obvious causes.

Root and canal configurations of maxillary premolars in a South African subpopulation using cone beam computed tomography and two classification systems.

This cone beam computed tomography (CBCT) study aimed to describe the maxillary premolar anatomy of a South African subpopulation using two classification systems. A total of 601 premolars were evaluated. For each tooth, the root number and canal configurations were described using the classification systems devised by Vertucci (1984) and Ahmed et al.

Tongue-tied: a case of magnetic balls constricting the lingual frenum.

The health risks associated with aspiration and ingestion of foreign bodies in children are well known. The increased availability of magnetic toys have added to these risks. A 7-year-old girl presented at the Department of Maxillofacial and Oral Surgery at the University of Pretoria Oral and Dental Hospital with a complaint of pain under the tongue.

Allergic contact dermatitis from resin-modified glass ionomers.

Monomers in a variety of dental materials may cause allergic contact dermatitis. While resin materials have been implicated in the onset of this condition, there is a paucity of evidence linking the condition to the resin-modified glass ionomers (RMGIs). This report documents a rare case of a dentist who developed allergic contact dermatitis following exposure to a RMGI.

Single-use of endodontic hand files: perceptions and practise.

Background: The concept of single-use of endodontic files remains controversial in the published literature. The extent and attitudes concerning the single-use of endodontic hand files is currently unknown in many countries.

Aim: The prevalence and perceptions regarding the single-use of endodontic files was investigated in this descriptive observational study.