Tissue engineering is an emerging field of science that focuses on creating suitable conditions for the regeneration of tissues. The basic components for tissue engineering involve an interactive triad of scaffolds, signaling molecules, and cells. In this context, stem cells (SCs) present the characteristics of self-renewal and differentiation capacity, which make them promising candidates for ...

Microspatial analyses of the trace element composition of dental enamel are made possible using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Fine spatial resolution, multielement capabilities, and minimal sample destruction make this technique particularly well-suited for documenting the distribution of elements in sequentially calcifying layers of enamel. Because de...

Parents' understanding of the dental therapy to retain deciduous tooth space may influence treatment plans. Parents should be made aware consequences such matters through comprehensive educational initiatives, as well preventive measures that can taken for children during primary or early mixed dentition, importance maintainers in preventing loss and a variety malocclusions. To minimize exp...

Root resorption is the destructive process of the cementum and/or dentine layers of a tooth root due to clastic cell activity which leads to a subsequent loss root structure of a tooth. This process may be physiological or pathological. Physiological root resorption of deciduous teeth naturally occurs when the permanent teeth begin to erupt. It may also occur to a small degree in the permanent ...

Weaning practices differ among great apes and likely diverged during the course of human evolution, but behavioral inference from the fossil record is hampered by a lack of unambiguous biomarkers. Here, we show that early-life dietary transitions are recorded in human deciduous tooth enamel as marked variations in Ca isotope ratios (δ44/42Ca). Using a sequential microsampling method along the e...

Cariostatic treatment has been shown to successfully arrest caries. However, it blackens the carious tooth structure. This study evaluated the effects of an experimental cariostatic agent with silver nanoparticles (Ag-Nano) using microhardness (MH) and microbiological tests. The cariostatic agents tested were: Saforide®, Cariestop®, Ancarie® and Ag-Nano. Sixty-six samples from deciduous enamel ...

要 旨:乳 歯 の歯根吸収 の機序 につ いて知 るために,特 に歯質 の無機成 分の溶解 について検 討 を行 な った。 実験 には仔牛 の下顎 を用 い,歯 根 吸収 の進行 している乳歯 を抜去 してその 吸収組織 を採取 する とともに, 研究対照 と して骨 中よ り永久歯歯胚 を摘出 して,エ ナメル器 と歯乳頭 に分離 して実験 に供 した。 まず,吸 収組織 のin vitroに おけ る歯質溶解能の有無につい て確認す るために,牛 の永久歯切歯 の研磨片 の上 に吸収組織 を載せ て培養 した後,走 査型電顕 でそ の表面 を観察 した。 この結果,吸 収組織 は象牙質 のみ な らずエナ メル質 にお いても著明 な吸収窩 を形成 し,明 らかに歯質 を溶解す るこ とを認 めた。 次に,吸 収組織 と歯胚 の各組織 について,酸 素消 費量 と乳酸 生成量 ...

Dental ectopia is a rare developing anomaly characterized by change in the normal eruption pathway of deciduous, permanent or supernumerary tooth. In some cases, ectopic teeth are present non-dentate area like maxillary sinus. The article presents cone beam computed tomography data 7 asymptomatic patients with totally partially located inside Dentigerous cysts and odontomas can cause displaceme...