None of the restorative materials available to the dental profession adhere to tooth structure. The bonding of these materials could be greatly increased by etching the enamel surface prior to the placement of the restorative ...
The aim of bonding composite resin restorations to the tooth is to
ensure retention and also to prevent marginal leakage at the tooth restoration
interface, a process which can lead to further caries. An in
vitro marginal ...
Scanning electron microscopy has revealed that the surfaces of keratinized and non-keratinized oral epithelial cells have characteristic features which enable these tissue types to be readily distinguished. These features ...
Grossman, E. S.; Austin, J. C.; Cleaton-Jones, P.(1979)
This study was undertaken to determine the distribution of hemidesmosomes on the basal cell membranes adjacent to the basement lamina and the spinous cell membranes on unloaded keratinized AG and non- keratinized AM.
Grossman, E. S.; Witcomb, M. J.; Jodaikin, A(1984)
Since dental amalgam does not bond chemically to tooth structure, a microcrevice is present at the amalgam/tooth interface of a freshly placed restoration. This gap is of sufficient width to allow fluids and microorganisms ...
Chlorine and sulphur -.have been found in the marginal seal of some tooth-amalgam interfaces . Although the role of Cl in the sealing process is relatively well established the role of S remains more obscure. The purpose ...
Austin, J. C.; Grossman, E. S.; Cleaton-Jones, P.(1979)
Healthy keratinised and non-keratinised oral mucosa (attached gingiva and alveolar mucosa) were obtained from 6 adult vervet monkeys, fixed in situ by simultaneous perfusion and immersion fixation using cacodylate buffered ...
Cavities 1,25 x 2,00mm were prepared in the cervical dentine of extracted human premolar teeth using a no. 577 tungsten carbide bur. The cavity depth was standardised at 1mm with the aid of a depth gauge fitted to the high ...
Jones, R. R. H.; Cleaton-Jones, P.(Sage Pub, 1989)
Dental caries and the severity (depth) and area of erosions of tooth substance were studied in 11 bulimic subjects and 22 matched controls. Erosions were seen in 69% of the bulimics' teeth and in only 7% of the controls' ...
Vervet monkey attached gingiva and alveolar mucosa was used to investigate the effect of primary fixative composition and osmolarity on the scanning electron microscope appearance and epithelial cell surface feature density. ...
Cleaton-Jones, P.; Duggal, M.; Parak, R.; et al(2004)
AIM: To compare histological responses to zinc oxide-eugenol (ZOE) and calcium hydroxide (CH) pulpectomies in primary molar teeth with inflamed pulps.
STUDY DESIGN:This was an experimental study in 17 juvenile baboons ...
The experiments reported here were undertaken primarily to investigate further the
histological changes occurring in the enamel organ of the rat’s incisor tooth during
vitamin E deficiency. These changes were originally ...
Bischoff, J. I.; Van Der Merwe, E. H. M.; Retief, D. H.; et al.(1976)
The DMFT index, degree of fluorosis (DEGF), fluoride concentration in enamel (F), and depth of etch (D) were determined in participants living in an area with a high fluoride level. A statistically significant difference ...
In groups of Wistar rats 3 and 12 months of age, colchicine and radioautography were used to assess mitotic activity in oral epitheliums. Apparent mitotic activity in the epitheliums of the cheek, hard palate, and central, ...
Fifteen µCi of ³H-thymidine was injected into the amniotic cavity of fetal rats from day 15 to 19 postinsemination. Analysis of radioautographs from these rats did not show increased mesenchymal cell activity to be responsible ...