Publications


2008

JOSEPH, DRDIENYATOM, BISHAR DRALASOWKASSIM, R PROFLESANWILFRED, KYALE DRKISUMBIBERNINA.  2008.  Combined chemical micro-abrasion and bleaching technique in the management of enamel flourotic stains. In press Journal of Kenya Dental Association 2008:1(1) : 24-28.. Journal of The Kenya Dental Association (JKDA) Vol 1. No.1: 23-27. : International Journal of Climatology Abstract
Objective: To remove or modify fluorotic enamel stains using a combined chemical micro-abrasion and bleaching technique. Design: An in-vivo study was carried out. A sample of 21 participants was randomly selected from patients presenting with brown staining due to flourosis as the chief complaint. Eighty nine teeth were selected based on the Thylstrup-Fejerskov Index [TFI] with a score of 4 as the acceptable maximum. Only upper anterior teeth were included in the study. Setting: The study was undertaken at the University Of Nairobi Dental Hospital, Kenya. Subjects: Patients with an expressed need for treatment of their discoloured teeth who consented to a clearly demonstrated treatment procedure constituted the sample. Results: Enamel discolouration was removed or modified yielding a uniform colour and lustre depending on the initial depth of the stain. All patients appreciated the colour change. Conclusion: A combined chemical micro-abrasion and bleaching technique is a feasible treatment modality in selected cases of enamel fluorosis.

1989

R, PROFLESANWILFRED.  1989.  Diagnostic significance of radiographs on proximal surface caries in epidemiological surveys. East Afr Med J. 1989 Apr;66(4):289-92.. East Afr Med J. 1989 Apr;66(4):289-92.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.
R, PROFLESANWILFRED.  1989.  Double supernumerary impacted premolar teeth: case report. East Afr Med J. 1989 Jul;66(7):489-90.. East Afr Med J. 1989 Jul;66(7):489-90.. : International Journal of Climatology Abstract
A rare case of double supernumerary impacted premolar teeth is presented. The possible sequelae and management are briefly discussed.

1988

W, DRMAINASUSAN, R PROFLESANWILFRED.  1988.  Maina S.W and Lesan W.R. Dental Plaque and Gingival condition of Mentally Handicapped Children in Mathare Special Training Centre Nairobi, Kenya. East Afri. Med J. 1988 May; 65(5):330-4. East Afri. Med J. 1988 May; 65(5):330-4. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.

1987

R, PROFLESANWILFRED.  1987.  The effects of a commercial beverage on the enamel surface of human tooth: a scanning electron microscopy study. East Afr Med J. 1987 May;64(5):345-51.. East Afr Med J. 1987 May;64(5):345-51.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.
R, PROFLESANWILFRED.  1987.  Unusual case of dental erosion: a case report. East Afr Med J. 1987 Apr;64(4):287-8.. East Afr Med J. 1987 Apr;64(4):287-8.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.
R, PROFLESANWILFRED.  1987.  The effects of a commercial beverage on the enamel surface of human tooth: a scanning electron microscopy study. East Afr Med J. 1987 May;64(5):345-51.. East Afr Med J. 1987 May;64(5):345-51.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.
R, PROFLESANWILFRED.  1987.  Dental fluorosis: a review of literature with comments on tropical characteristics. East Afr Med J. 1987 Jul;64(7):493-8.. East Afr Med J. 1987 Jul;64(7):493-8.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.
R, PROFLESANWILFRED.  1987.  The effects of crown margin location on the aesthetics and periodontal status of fluorosed teeth treated with jacket crowns. Afr Dent J. 1987 Oct;1(2):79-82.. Afr Dent J. 1987 Oct;1(2):79-82.. : International Journal of Climatology Abstract
Ninety seven patients were examined for dental caries using two standard methods: (a) clinical examination based on WHO Basic Methods Oral Health surveys and (b) radiographic examination. Clinical examination method under records caries by upto 40%. Such under recording may give an impression of a decreasing caries prevalence in epidemiological studies.

1982

Lesan, WR.  1982.  Some Aspects Of Solubility Of Silicate And Glass Ionomer Cements A Laboratory Study. Abstract

Three aspects of the in-vitro solubility of silicate and glassionomer
dental cements were studied.
a) The solubility of silicate cements was studied using the "weight
of evapourated eluate method. It was shown that the dissolution
of these cements depends on the volume of solution in which they
are immersed and also the frequency in which this was changed.
It was seen that these cement~ were capable of taking up fluoride
ions from concentrated solutions while releasing the same ions
in more dilute solutions. Studies with samples of varying surface
area:volume ratios confirm that dissolution is not only dependent
on the surface area but that matter is also lost from the bulk
of the specimen.
b) The release of organic materials from glass ionomer cements
immersed in water or phosphate solution was studied using a total
organic content (T.O.C) analyser. It was seen that upto 0.l0mg
of organics could be detected in such solutions. The concentration
of detected organic species rises with increasing time, then
falls off again. This is explained in terms of re-adsorption
of the organic species by the cement.
c) Thermogravimetric analysis studies glass ionomer cement samples
"
with various histories were made. Weight loss (presumably of
water) was shown to be related to the history of the samples
as well as to the thermogravimetric conditions. The thermogravimetric
conditions used in this study were air and Nitrogen
atmospheres. The results are used to assess the merits of the

sample-weight loss" method for investigating solubility.
This method, in view of the simultaneous water loss or uptake
by the sample, is not recommended.

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