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Molar incisor hypomineralization (MIH) is a developmental defect that affects the enamel tissue of permanent teeth. Clinicians may observe a range of opacities in the affected teeth, varying from white to creamy, yellow, and brown. Of particular interest is an etiology of MIH that has not been rigorously elucidated.

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Roles of calcium in ameloblasts during tooth development: A scoping review.

J Taibah Univ Med Sci

February 2025

Department of Prosthodontics/Dental Material, Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, India.

Objectives: Calcium ions (Ca) play crucial role in tooth development, particularly in maintaining enamel density during amelogenesis. Ameloblasts require specific proteins such as amelogenin, ameloblastin, enamelin, kallikrein, and collagen for enamel growth. Recent research has highlighted the importance of calcium and fluoride ions, as well as the TRPM7, STIM, and SOCE pathways, in regulating various stages of enamel formation.

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A dentigerous cyst (DC) is the most common developmental cystic lesion of the jaws. Histologically, these cysts derive from the odontogenic epithelium that includes the reduced enamel epithelium, epithelial cell rests of Serres, and epithelial cell rests of Malassez. Radiographically, DCs are usually presented as well-defined radiolucencies associated with the crown of an unerupted tooth at the level of the cementoenamel junction (CEJ).

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Background: Oculodentodigital dysplasia (ODDD) is a rare syndrome that causes a constellation of facial, ophthalmic, dental, and limb abnormalities. Variants in the gap junction alpha-1 () gene have been described in patients with ODDD. Hereby we present the ocular manifestations in a patient with recessive ODDD due to a novel homozygous frameshift variant in .

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Background: The periosteum consists of an outer fibrous layer and an inner cellular layer, where bone cells reside. Hence, it has been suggested that applying periosteum to a periodontal defect may help new bone formation. The purpose of this case study is to present the clinical and radiographic outcomes of a vestibular regenerative approach and the application of a connective tissue graft (CTG) with periosteum to improve the periodontal prognosis of a pathologically migrated hopeless tooth with an endo-periodontal lesion (EPL).

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