geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Ultrastructure (SEM) of dentine bridging in the human dental pulp


, : Ultrastructure (SEM) of dentine bridging in the human dental pulp. Journal de Biologie Buccale 12(3): 239-246

This study was designed to investigate by SEM the ultrastructure of the dentinal bridge formed upon pulp capping and its attachment to the contiguous dentinal walls. The pulps of 20 sound premolars and third molars were deliberately exposed and capped with a calcium hydroxide paste, Pulpdent. After 4 to 15 weeks the teeth were extracted. SEM observations suggested complete bridging, increasing in thickness after succeeding postoperative periods. Cross-sections of the specimens older than 6 weeks showed the presence of three different layers within the bridges: the superior amorphous layer was composed of tissue debris and Ca(OH)2, in the medial portion a coarse meshwork of fibers was identified as fibrodentine and the pulpal aspects exhibited tubularlike orthodentinal structures. The bridge attachment was secured by bundles of fibres linking the intertubular dentine of the pulpal walls with the dentine of the neodentinal bridge.

US$29.90

PMID: 6594334


Other references

Papayannopoulou, T.; Nakamoto, B.; Kurachi, S.; Tweeddale, M.; Messner, H., 1988: Surface antigenic profile and globin phenotype of two new human erythroleukemia lines: characterization and interpretations. Detailed characterization of the composite phenotype of two newly established erythroleukemia lines (OCIM1, OCIM2) shows that these lines share many of their erythroid markers (ie, surface antigens and globin program) as well as several of their n...

Shaffer, S.A., 1963: Role Of The New Outpatient Tuberculosis Clinics In Kentucky. Journal of the Kentucky Medical Association 61: 752-755

Schiffman, J.M.; Luchies, C.W.; Piscitelle, L.; Hasselquist, L.; Gregorczyk, K.N., 2006: Discrete bandwidth visual feedback increases structure of output as compared to continuous visual feedback in isometric force control tasks. Background. Performance variability measures provide a partial picture of force control ability. Nonlinear analyses can reveal important information related to the randomness and complexity of the data, providing a more complete picture of the ph...

John, 2000: HIV infection and immunization - reply. Indian Pediatrics 37(5): 559-559

Dasappa, 1990: Nursery techniques in teak (Tectona grandis Linn. f.) for afforestation. A brief compilation of information is presented on nursery practices for teak, with particular reference to India, and including information on distribution, provenances, silvicultural characters, seeds (collection, treatment, sowing and germinati...

Chae, S.; Sim, M.; Lim, M.; Na, J.; Kim, D., 2015: Multivariate Analysis of Relationship between Childhood Trauma and Psychotic Symptoms in Patients with Schizophrenia. The aim of this study was to examine the relationship between childhood trauma and psychotic symptoms in schizophrenic patients after controlling for the possible confounding factors, such as depression and dissociative symptoms. Ninety-eight schi...

Kuchmak, M., 1967: Contamination of methyl ester preparations during methylation of fatty acids on an ion exchange resin. An ultracentrifugal method for isolating chylomicron-containing fractions from serum by flotation, using either standard Spinco swinging-bucket rotors or a specially fabricated swinging-bucket rotor, is described. Lower limits of the S(f) rates of...

Saffle, J.R.; Zeluff, G.R.; Warden, G.D., 1980: Intramuscular pressure in the burned arm: measurement and response to escharotomy. Using a wick catheter technique, sequential measurements of intramuscular pressure were obtained in 31 burned arms in 18 patients. Abnormally high pressures were recorded in 90 percent of extremities and exceeded the potentially harmful level of 3...

Philippart, M.; Schmidt, J.; Bittner, B., 2015: Oral Delivery of Therapeutic Proteins and Peptides: An Overview of Current Technologies and Recommendations for Bridging from Approved Intravenous or Subcutaneous Administration to Novel Oral Regimens. Since the early 1980s, therapeutic proteins and peptides have become established as an important class of pharmaceuticals. Due to their low oral bioavailability, which results from pre-systemic degradation and poor gastrointestinal absorption, mos...

Eilmus, Sascha., 2000: Atlas moths Nachtpfauenaugen. DATZ. September; 539: 28-32