1.Supernumerary tooth: Report of a case.
Archives of Orofacial Sciences 2007;2(1):54-58
Supernumerary tooth (ST) is a developmental anomaly and has been argued to arise from multiple etiologies. These teeth may remain embedded in the alveolar bone or can erupt into the oral cavity. When it remains embedded, it may cause disturbance to the developing teeth. The erupted supernumerary tooth might cause aesthetic and/or functional problems especially if it is situated in the maxillary anterior region. A case of supernumerary teeth is presented where the teeth have been left in place and which later gave rise to some problems. The patient had history of trauma and requested orthodontic treatment for the misalignment of his anterior teeth. The treatment options are further discussed.
Tooth
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Tooth, Supernumerary
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treatment options
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Places
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Skeletal bone
2.Stem cells from childrens’ teeth
A.B. Mohd Hilmi ; S.N. Fazliah ; A. Siti Fadilah ; H. Asma ; A.R. Siti Razila ; S. Shaharum ; S. Jaafar ; A.B. Asiah ; O. Shamsuria
Archives of Orofacial Sciences 2008;3(1):29-31
The aim of this study was to isolate stem cells from dental
pulp of primary molars and incisors to be used as possible source for tissue engineering. Human primary molars and incisors were collected from subjects aged 4-7 year-old under standardized procedures.
Within 24 hours, the tooth was cut at the cemento-enamel junction using hard tissue material cutter. The dental pulp tissue was extracted, digested and then cultured in Alpha Modified Eagles’s Medium (α-MEM) supplemented with 20% FCS, 100 mM L-ascorbic acid 2-phosphate, 200 mM L-glutamine and 5000 units/ml Penicillin/Streptomycin. The cells were observed daily under the
microscope until confluence. Children’s tooth pulp- derived progenitor cells were found positive for stem cell markers CD105 and CD166, which are consistent with the finding for mesenchymal stem cells (MSCs) from bone marrow.