Comparing Skin Tones to Shades of Upper Anterior Teeth: An Observational Study among Nigerian Adults.

Background: Skin tones may be predictive of anterior tooth shade. An analysis of the relationship of skin tone to anterior tooth shade within a population may facilitate the prescription of complete dentures with optimal esthetics and realism.

Aim: This study aimed to assess the relationship between skin tones and shades of upper anterior teeth among a diverse Nigerian adult population.

Pattern and Severity of Dental Caries among Adults in an Urban Population in Northwest Nigeria.

Background: Dental caries is one of the most prevalent oral diseases affecting children and adult populations worldwide. The distribution and severity of dental caries vary in different parts of the world and within the same region or country. However, few studies have focused on the burden of caries among Nigerian adults.

Are there associations between the occurrence of dental fluorosis and the experience of dentine hypersensitivity? A cross-sectional study.

Objectives: Associations between the occurrence of dentine hypersensitivity (DH) and dental fluorosis (DF) have been suggested. Testing this association requires studies among populations with both conditions. This study aimed to determine the association between DF and the experience of DH among a population endemic for DF.

Physiological response of WAD sheep fed different combinations of Guinea grass and ensiled A (L.) O. Kuntze based diets: Intake, haematology and serum biochemical indices.

Animal feed shortages characterize the long dry season in most Sub-Saharan African countries. Studies exploring alternative feedstuffs with similar or complementary nutritional efficacy to the conventional ones are seriously canvassed. Therefore, this study aimed to evaluate the effect of feeding West African Dwarf (WAD) sheep with different combinations of guinea grass and ensiled based diets on their intake, haematology, and biochemical indices.

Effects of fossil shell flour supplementation on heat tolerance of dohne merino rams.

This study evaluated the effects of fossil shell flour (FSF) supplementation on heat tolerance of Dohne Merino sheep. Twenty-four ( = 24) Dohne Merino rams of about 4 months old, weighing 22.3 ± 0.

Effect of Varying Inclusion Levels of Fossil Shell Flour on Growth Performance, Water Intake, Digestibility and N Retention in Dohne-Merino Wethers.

This study was carried out to determine the effect of varying levels of Fossil shell flour (FSF) supplementation on growth performance, water intake, digestibility and N retention in Dohne Merino sheep pursuant to establishing the optimum inclusion rate of this supplement in Dohne Merino diets. Sixteen Dohne-Merino wethers (18 ± 1.5 kg body weight) were used in a complete randomized design with four animals per treatment.

Fossil Shell Flour in Livestock Production: A Review.

Fossil shell flour (FSF), also known as Diatomaceous earth, or diatomite, consists of amorphous silicates with important physical and chemical characteristics, including porosity and permeability, low density and thermal conductivity, tiny particle size, high surface area, solubility, hydrophobia, and absorption capabilities, which are molecular filter actors, substituting their integral cations without physical changes. The substance is nontoxic, cheap, and readily available in large quantity in many countries. Recently, FSF has been modified as additives for several uses.

Effect of resilient lining of obturator bulbs on patients with maxillectomies.

Statement Of Problem: Poly(methyl methacrylate) (PMMA) obturator bulbs are hard and nonresilient. The relief for these obturators limits the support available for the bulbs and may limit mastication on the side with the resection. Resilient liners may improve mastication by gaining greater support from closer contact with tissues within the defects.

An assessment of interocclusal space in a dentate Nigerian population.

Aims And Objectives: To determine the average interocclusal space values in a dentate Nigerian population,and to examine the effect of gender, age and different molar relationships on the values obtained.

Subjects And Methods: Three hundred and fifty one subjects mainly of Yoruba extraction with ages ranging from 16 to 78 years were involved in the study. They included 165 males and 186 females.

Maxillectomy defects: a suggested classification scheme.

Introduction: The term "maxillectomy" has been used to describe a variety of surgical procedures for a spectrum of diseases involving a diverse anatomical site. Hence, classifications of maxillectomy defects have often made communication difficult. This article highlights this problem, emphasises the need for a uniform system of classification and suggests a classification system which is simple and comprehensive.

Interim prosthetic rehabilitation of postmandibulectomy defect using a single piece acrylic denture: a case report.

Introduction: Prosthetic rehabilitation of mandibular discontinuity defects poses a great challenge to prosthodontists especially when surgical reconstruction is not carried out prior to rehabilitation.

Method: A 25-year-old young man was referred to the prosthetic unit of the Dental Centre, University College Hospital Ibadan with an anterior discontinuity defect following resection of a mandibular tumour. After clinical and laboratory procedures, the prosthesis used to rehabilitate the patient is unique because it is simple, made of heat cure acrylic resin, affordable and aesthetically pleasing.

Sensitized recipients exhibit accelerated but not hyperacute rejection of vascularized composite tissue allografts.

Background: Currently, the donor-recipient matching process for vascularized composite tissue allotransplantation (VCTA) closely follows the standard practices for solid organ transplantation. Sensitization is considered a contraindication to VCTA. However, the role of sensitization in VCTA rejection is largely unstudied.

Molecular epidemiology of Nigerian and Ghanaian measles virus isolates reveals a genotype circulating widely in western and central Africa.

Sub-Saharan Africa is one of the regions of the globe with the highest measles-related morbidity and mortality. Yet only seven virus isolates from this vast region have been phylogenetically characterized on the basis of their nucleoprotein, the last one in 1991. To characterize the prevalent wild-type viruses and to understand their circulation pattern, a large panel (n = 45) of isolates was collected in Ghana and Nigeria in 1997 and 1998.

Isolation of Nigerian strains of measles virus.

We have recently succeeded in isolating two measles viruses, Ibn H13153 and Ibn H13154 from the peripheral lymphocytes of two unvaccinated 9 and 12 month old outpatient children at the Institute of Child Health, University College Hospital Ibadan, Nigeria. The viruses have undergone six serial passages in B95a and Vero cell lines where characteristic measles cytopathic effects (CPE) have been noticed. The viruses have been confirmed to be measles by Haemagglutination Inhibition (HI) test and the Indirect Immunofluorescent antibody Test (IFT).

Field trial of combined yellow fever and measles vaccines among children in Nigeria.

The compared tolerance and immunogenecity of yellow fever and measles vaccines administered separately or combined were evaluated in Nigerian children aged between six to eight and nine to twelve months. The vaccines were well tolerated by both age groups of children, however pyrexia which responded to analgesic was the commonest post vaccination reaction in all the groups of the vaccinated children. Immune response to the vaccines either when given separately or combined was excellent in all the vaccinated groups.