24 research outputs found
Mandibular reconstruction: a new defect classification system
This paper presents a new mandibular segmental defect classification system (La-Co-CE) with a view to highlight the complexity and difficulty of the reconstruction with free autogenous bone grafts which the most frequently used method for surgeons practicing in developing countries. We submit that defect classification systems will continue to remain relevant if surgeons are to is pre-operatively classify the envisaged operative difficulty and objectively compare the outcome postoperatively. Key words: Mandibular reconstruction, defect, classification
Comparative analysis of preemptive analgesic effect of dexamethasone and diclofenac following third molar surgery
Zinc abatement from simulated and industrial wastewaters using sugarcane biomass
The use of heavy metals and their compounds in industrial applications has resulted in their occurrence in various environmental
media including water bodies. Conventional methods of heavy metal removal from wastewaters are very expensive,
when available, especially in developing countries. This study therefore assessed the potential of sugarcane biomass to
remove zinc from standard solutions and industrial (paint and textile) wastewaters. Parameters studied include contact
time, biomass weight, metal concentration, pH, agitation, temperature and particle size. Physico-chemical characteristics of
biomass were also studied. Adsorption of zinc increased with increases in contact time, biomass weight, pH and agitation
speed, while adsorption decreased with increasing particle size and for temperatures above 50o
C. Sugarcane biomass was
responsible for over 90% adsorption of Zn2+ in both effluents. Under conditions of agitation, 100% adsorption was achieved.
Percentage ash, particle density, cation exchange capacity (CEC) and porosity are important physico-chemical properties
which influenced Zn2+ adsorption. Percentage ash and CEC are positively correlated to percentage adsorption while particle
density and porosity are negatively correlated. Percentage desorption was over 90 for both effluents. Sugarcane biomass is
therefore a potential alternative to expensive synthetic resins. Its biodegradability makes disposal environmentally friendly.
However, there is the need to further study the biomass in flow-through systems for industrial applicability.International Foundation for Science (IFS), Sweden, through
Research Grant No. W/4264-
Conebeam computed tomography (CBCT): The new vista in oral and maxillofacial imaging
No Abstrract
Evaluation of partial replacement of maize with cooked wild variegated cocoyam corm meal (Caladium hortulanum) in broiler starter diet
No Abstract
Appropriateness of removal of impacted lower third molars: a 2-year audit at the Lagos University Teaching Hospital
No abstract
Nigerian Quarterly Journal of Hospital Medicine Vol. 13(1-2): 25-2
The use of methemoglobin complex in estimating cyanogen potential of cassava and cassava products
An improved method of analysis of cyanide in cassava and cassava products using methemoglobin complex is described. The cyanogen content of cassava mash, pre-fufu mash, fufu and Gari wasdetermined spectrophotometrically. Optimal conditions were determined to be 24 h at 370C in phosphate buffer (0.05 M; pH 5.6). The average cyanogen content obtained were 14.68 ± 0.66, 13.49 ± 0.02, 11.94 ±0.02 and 9.87 ± 0.64 mg/kg for cassava mash, pre-fufu, fufu and gari, respectively. The values estimated for cassava mash and pre-fufu are greater than the values obtained for the processed fufu and gari, andalso greater than the WHO safe value for cassava flour (10 mg/kg). The fact that the results of this work gave lower values of cyanide in processed cassava products compared with the value of unprocessed cassava suggests the validity of this method
Awareness and knowledge of oral cancer amongst dental therapists in Nigeria: A pilot study
No Abstract
Utilization of maize (Zea mays) cob as an adsorbent for lead (II) removal from aqueous solutions and industrial effluents
Maize cob was used as an adsorbent in order to evaluate its potential for the removal of lead from aqueous solutions and effluents from battery and paint industries with Dowex (synthetic resin) as control. Experimental data were analyzed in terms of Freundlich isotherm model. Equilibrium was attained at 2 h and adsorption rate constants for maize cob and dowex were 7.26 x 10-2 and 7.58 x 10-2 min-1, respectively. Equilibrium pH value was 6; shaking at 150 rpm enhanced adsorption with maximum adsorption by both adsorbents in battery and paint effluents. Optimal weight at equilibrium for the adsorbents in Pb2+ solution was 16 mg/L of solution. Pb2+ removal by maize cob from battery effluent was 99.99% while it was 47.38% for Dowex. Corresponding values from paint effluents were 66.16 and 27.83%. The study concludes that maize cob has great potentials to remove Pb2+ from industrial effluents
Overweight and obesity among patients attending a Nigerian oral surgery clinic: implications for oral surgical practice in Nigeria
Aim: To determine the prevalence of overweight and obesity among
patients attending oral and maxillofacial outpatient clinic of the
Lagos University Teaching Hospital, Nigeria; and discuss the clinical
and surgical implications that obesity has on the delivery of oral and
maxillofacial surgical and anaesthetic care. Methods: Consecutive
patients presenting to the oral and maxillofacial surgery outpatient
clinic at the Lagos University Teaching Hospital, Nigeria over a
4-month period (May-August 2004) were screened for age, sex, height and
weight. All of the patients were treated for dentoalveolar surgical
procedures (routine and surgical extractions), incisional and
excisional biopsies, and enucleation under local anaesthesia. Results:
The BMIs of the studied patients ranged from 16.7 to 39.8 kg/m2, with a
mean of 24.6 ± 4.5 kg/m2. Prevalence of excess weight was 39.1%.
Thirty-one (11.4%) patients were obese and 75 (27.7%) patients were
overweight. A significant difference was observed in the BMIs of male
and female patients (P=0.000). The age groups < 30 years had mean
BMIs that were considered normal; whereas other age groups above 30
years had mean BMIs that were considered overweight. Prevalence of
obesity increases with increasing age. Obese individuals were seen in
all the age groups except those < 20 years. Conculsions: The
prevalence of excess weight (overweight and obesity) in patients
presenting in the studied oral and maxillofacial outpatient setting was
39.1%. Oral and maxillofacial surgeon needs to be aware of
obesity-/overweight-related medical and surgical issues and take them
into consideration when treating these patients