Biomedical subjects

S Olmez

Publications and source records attributed to S Olmez.

10 recordsLinked to original sources

PubMed2000

Short term human primary pulpal response after direct pulp capping with fourth-generation dentin adhesives.

The purpose of this study was to evaluate the effects of the total-etch and direct pulp capping techniques on the short-term response of mechanically exposed human primary tooth pulps using three commercially available adhesive resin systems. Class V cavities were prepared on the buccal surface of intact mandibular primary molars and exposed with a carbide bur on the cavity floor. The entire cavity except the exposure site received 36% phosphoric acid gel conditioning. Exposed pulps were capped with one of the three adhesive resins, followed by restoration of the cavities with the respective restorative materials. The teeth were extracted after 60 days and prepared according to normal histological techniques. Serial sections were stained with H/B for histological evaluations. The histopathological evaluation showed that a few of the samples in the Scotchbond Multi Purpose (SMP) and Prime & Bond 2.1 (PB) groups exhibited "attempted bridge formation", while no bridge formation was evident in the other samples. Syntac Single Component (Syntac) exhibited the most severe histological response, while the mildest reactions were observed in the SMIP group. Based on the conditions of the present study, direct pulp capping with dentin bonding agents following the total-etch technique in primary teeth can not be recommended.

Acid Etching, Dental↗

PubMed1999

Clinical and ultrastructural study of natal and neonatal teeth.

The present study was undertaken to evaluate the surface topography of mandibular natal and neonatal incisors at the ultrastructural level using the scanning electron microscope (SEM). The enamel of the teeth exhibited hypoplastic, depressed areas and the incisal edge of natal tooth lacked enamel. In addition, root formation of the teeth was not completed, which correlated with findings that teeth may erupt without root formation.

Dental Enamel↗

PubMed1998

Supernumerary tooth in the maxillary sinus: case report.

The ectopic development of teeth has been reported in many locations including the nasal cavity, maxillary sinus and the chin. Ectopic teeth may be permanent, deciduous or supernumerary. A case is presented in which a supernumerary tooth erupted into the maxillary sinus of an 11 year old boy.

Child↗

PubMed1996

Gross alpha-particle activities in the ground waters in Western Anatolia.

The purpose of this study is to present data on gross alpha-particle activity, pH and conductivity in the ground waters in Western Anatolia. The gross alpha-particle activities in 27 ground water samples were determined by radiochemical carrier-precipitation methods. The gross alpha-particle activities of water samples were measured by using a ZnS (Ag) detector system. Measurable alpha-particle activity is present in all ground water samples, with one ground water sample having a gross alpha-particle activity > 0.55 Bq/L.

Alpha Particles↗

PubMed1996

The use of a special mouthguard in the management of oral injury self-inflicted by a 4-year-old child.

This paper describes the management of self-inflicted trauma by a 4-year-old boy who was mentally retarded as a result of encephalitis in infancy. There was severe damage to his lower lip, as well as a moderate degree of injury to the skin and nail of his right thumb. Preliminary intervention was made with a mouthguard using silicone elastomeric positioner material, which soon proved ineffective because of poor retention. The problem was overcome successfully through use of a special appliance in which a heat-cured acrylic base was combined with a superstructure made of silicone positioner material retained mechanically with retention loops of 0.7 mm orthodontic wire.

Acrylic Resins↗

PubMed1995

Dens invaginatus of a mandibular central incisor: surgical endodontic treatment.

Dens invaginatus is a developmental malformation that mostly affects maxillary lateral teeth and mandibular teeth are rarely affected. In this paper a mandibular central incisor with a dens invaginatus is identified as requiring both endodontic and surgical treatment is presented. At one year recall appointment satisfactory clinical and radiographic healing was evident. This case demonstrates that also periapical surgery should be performed in some cases with dens invaginatus for resolution of periapical tissues.

Child↗

PubMed1994

Extraction of uranium from acidic solutions by TBP impregnated polyurethane foam.

Polyurethane foams can be used as a selective absorbent for a number of substances from dilute aqueous solutions. Absorption of uranium (VI) has been investigated using an open-cell polyurethane foam impregnated with tri-butyl phosphate (TBP). The extraction efficiency was observed to depend on the pH of the uranium solution and the concentration of uranyl ions. Also, the effects of TBP concentration, temperature, and squeezing time on the extraction of uranium were examined.

Adsorption↗

PubMedDate not supplied

Neonatal sublingual traumatic ulceration (Riga-Fede disease): a case report.

Early eruption of primary teeth rarely occurs and is referred to as "natal or neonatal teeth". These teeth may cause some complications, including ulceration of the sublingual area, pain during suckling and future nutritional problems. A two-month-old infant suffering from sublingual area ulceration due to two neonatal teeth was examined. His teeth were extracted and healing of the ulcerated area was observed within the first week.

Humans↗

PubMedDate not supplied

Unusual impaction of inverted primary incisor: report of case.

A tooth that fails to erupt into a normal functional position by the time it normally should is considered impacted. Impactions of primary teeth are extremely rare, but when it does occur it usually involves the first and second molar. The purpose of this article is to present a case of a four-year-old patient with an impaction of an inverted primary mandibular incisor. On the basis of the patient's family history, the case might be considered as microform of ectodermal dysplasia.

Child, Preschool↗

PubMedDate not supplied

Ectodermal dysplasia with associated double tooth.

The case describes a double molar tooth in a seven-year-old girl who has ectodermal dysplasia. The most characteristic dental findings in ectodermal dysplasia are hypodontia and conically shaped crowns. In our case a double tooth was also present in the primary molar region, in addition to these characteristic findings.

Anodontia↗