Operators’ Ease and Satisfaction in Restoring Class II Cavities With Sectional Matrix Versus Circumferential Matrix System at Qassim University Dental Clinics

Class II represents a considerable part of orthodontic problems to be treated in dental clinics. To correct this malocclusion, there are currently several forms of treatment. Among the functional orthopedic devices, the Herbst device has stood out due to its efficiency and practicality for being fixed and not requiring the collaboration of the patient. The purpose of this article is to present, through a clinical case report, the treatment of class II malocclusion with a modified Herbst appliance with a lower acrylic splint. The female patient initially had 11 years and 11 months, permanent dentition, mandibular retrusion and atresia of the arches. Initially, a maxillary circuit breaker and lower expander were used, followed by the Herbst appliance and finished with fixed orthodontics. At the end of the treatment, the modified Herbst appliance proved to be effective, providing a class I molar relationship, improving the patient’s profile and decreasing the space between the resting lips.

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Prevalence And Distribution Of Dental Caries Experience According To GV Black Classification For Patient Attending To Dental School

Journal of Oral Health and Community Dentistry ◽

10.5005/johcd-9-2-60 ◽

2015 ◽

Vol 9 (2) ◽

pp. 60-63

Author(s):

RM Talabani ◽

A Al-Zahawi ◽

RO Ibrahim

Keyword(s):

Dental Caries ◽

Class Ii ◽

Occlusal Surface ◽

Class I ◽

Caries Experience ◽

Class Iii ◽

Dental Clinics ◽

Carious Lesions ◽

School Of Dentistry

ABSTRACT Objective The aim of our study was to evaluate the incidence of dental caries in relation to gender. GV Black classification was used. Method A sample of 1000 adult patient, 498 male and 502 female, were selected at random from patient attending to dental clinics of Conservative department at School of Dentistry, University of Sulaimani. Result According to GV Black classification of dental caries (7885) carious lesions were detected on various surfaces, class I buccal surface 387 (4.9 %), class I palatal surface 465 (5.8 %), class I occlusal surface 4836 (61.3%), class II mesio-occlusal (MO) 499 (6.3 %), class II disto-occlusal (DO) 594 (7.5 %), class II mesio-occlusal-distal (MOD) 215 (2.7 %), class III mesial 331 (4.1 %), class III distal 289 (3.6%), class IV 95 (1.2 %), class V 174 were (2.2 %). Conclusion The result of this study showed that Class I occlusal surface caries was more prevalent among other types of carious lesion according to GV Black classification.

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Electron microscopy analysis of degenerating pancreatic ß cells in transgenic mice expressing the MHC Class I antigen Dd

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100160297 ◽

1990 ◽

Vol 48 (3) ◽

pp. 548-549

Author(s):

T. A. Stewart ◽

D. Liggitt ◽

S. Pitts ◽

L. Martin ◽

M. Siegel ◽

...

Keyword(s):

Type I Diabetes ◽

Disease Process ◽

Class Ii ◽

Class I ◽

Type I ◽

Aberrant Expression ◽

Mhc Molecules ◽

Endogenous Insulin ◽

Class Ii Mhc ◽

Ifn Γ

Insulin-dependant (Type I) diabetes mellitus (IDDM) is a metabolic disorder resulting from the lack of endogenous insulin secretion. The disease is thought to result from the autoimmune mediated destruction of the insulin producing ß cells within the islets of Langerhans. The disease process is probably triggered by environmental agents, e.g. virus or chemical toxins on a background of genetic susceptibility associated with particular alleles within the major histocompatiblity complex (MHC). The relation between IDDM and the MHC locus has been reinforced by the demonstration of both class I and class II MHC proteins on the surface of ß cells from newly diagnosed patients as well as mounting evidence that IDDM has an autoimmune pathogenesis. In 1984, a series of observations were used to advance a hypothesis, in which it was suggested that aberrant expression of class II MHC molecules, perhaps induced by gamma-interferon (IFN γ) could present self antigens and initiate an autoimmune disease. We have tested some aspects of this model and demonstrated that expression of IFN γ by pancreatic ß cells can initiate an inflammatory destruction of both the islets and pancreas and does lead to IDDM.

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