tooth transplantation can be considered a valid and predictable treatment option for rehabilitating young patients with permanent teeth loss. this study presents several cases of successful autogenous tooth transplantation with a 6-9 months follow-up. tooth auto-transplantation can be considered a reasonable option for replacing missing teeth when a donor tooth is available. the auto-transplant...

fusion is a rare occurrence in molar teeth. the purpose of this rare case presentation is to describe the nonsurgical endodontic treatment of maxillary molar. a 28-year-old patient was referred for endodontic treatment of her chronic apical abscess of right maxillary second molar. in the clinical examination, a sinus tract adjacent to involved tooth and a small crown of supernumerary tooth fuse...

Shrinkage behavior of a geopolymer cement paste prepared from pumice-type natural pozzolan was studiedby changing parameters of chemical composition including SiO2/Na2O molar ratio of activator and total molar ratiosof Na2O/Al2O3, and H2O/Al2O3. For investigating the effect of curing conditions on shrinkage, hydrothermal curingwas also applied. The obtained results clearly revealed the governin...

Abstract Ameloblastic fibroma is a relatively rare benign odontogenic tumor with two neoplastic components both epithelial and ectomesenchymal. A 10-year-old girl was referred to a dentist for routine dental treatments for evaluation of the distance between mandibular right first permanent molar and mandibular right second deciduous molar and it was associated with an undesirable backward mov...

•At high hCG levels in molar pregnancies, a "hook effect" can cause an artificially negative value.•Delay in diagnosis of a molar pregnancy due to the "hook effect" can lead to severe complications.•Suspicion of a molar pregnancy should be communicated so a diluted sample is used to quantify hCG.

During the formation of repetitive ectodermally derived organs such as mammary glands, lateral line and teeth, the tissue primordium iteratively initiates new structures. In the case of successional molar development, new teeth appear sequentially in the posterior region of the jaw from Sox2 cells in association with the posterior aspect of a pre-existing tooth. The sequence of molar developmen...