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  • 1
    Electronic Resource
    Electronic Resource
    Dental health behavior and attitudes – an application of correspondence analysis (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 19 (1991), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Differences in dental behavior and dental altitudes between people with (almost) all natural teeth, people with a full denture in both jaws and people with a full denture in only the maxilla are visualized by means of correspondence analysis in one overall picture. In this picture the three distinguished subgroups of dental patients and their characteristics are indicated as points in a two-dimensional space. The distances between the points in this picture show to what extent these points are connected. The findings obtained in this study can lead to the conclusion that: a. differences in dental status are related to differences in dental behavior and dental attitudes; b. people with all natural teeth and people with a full demure in both jaws obviously are opposite of each other in many respects, whereas people with a full denture in only one jaw can be characterized as a dental in-between group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1991.tb00179.x
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  • 2
    Electronic Resource
    Electronic Resource
    Chewing ability of subjects with shortened dental arches (2003)
    Oxford, UK : Munksgaard International Publishers
    Community dentistry and oral epidemiology 31 (2003), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract  – Objectives:  The objective was to study chewing ability in subjects with shortened dental arches in Tanzania.Methods:  A sample of 725 adults with shortened dental arches comprising intact anterior regions and 0–8 occluding pairs of posterior teeth and 125 adults with complete dental arches were recruited. Subjects were classified into nine categories according to arch length and symmetry. Chewing ability was investigated by interview on chewing complaints and on perceived difficulty of chewing 20 common Tanzanian foods, 12 soft, and 8 hard.Results:  Categories with extreme shortened arches (0–2 pairs of occluding premolars) reported most frequent (95–98%) and most severe complaints (‘cannot chew all foods’ or ‘have to use special or specially prepared food’). Categories with intact premolar regions and at least one occluding pair of molars had nearly no complaints (95–97%). The other arch categories had an intermediate volume of complaints (33–54%). Perceived difficulty of chewing deteriorated with a decrease of occluding pairs of teeth. Subjects with 0–2 pairs of occluding premolars had major difficulties with chewing. Subjects with 3–4 pairs of occluding premolars or asymmetric arches comprising a short side with none or one pair of premolars and a long side including at least one occluding pair of molars had more difficulties with chewing compared to subjects with more complete dental arches. As a whole, they perceived for hard foods, ‘minor problems, not adapted’.Conclusions:  Shortened dental arches with intact premolar regions and at least one occluding pair of molars provide sufficient chewing ability. Shortened arches with 3–4 pairs of occluding premolars and asymmetric arches with a long side result in impairment of chewing ability, especially for hard foods. In extremely shortened arches comprising 0–2 occluding premolars, chewing ability is severely impaired.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0528.2003.t01-1-00011.x
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  • 3
    Electronic Resource
    Electronic Resource
    Emergence of permanent teeth in Tanzanian children (2002)
    Oxford, UK : Munksgaard International Publishers
    Community dentistry and oral epidemiology 30 (2002), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract –Objective:  The aim of the present study was to investigate the emergence of permanent teeth among Tanzanian children.Methods: A total of 869 Tanzanian children were recruited from 16 schools in age groups 3.5–5, 6.5–8, 9.5–11 and 15–16 years of whom 428 (49%) were boys and 441 (51%) were girls. The effects of age and gender on the emergence stages of the dentition were determined for the four age groups.Results: Girls, but not boys, had some permanent maxillary canines, second premolars and mandibular and maxillary second molars as early as at the age of 6.5–8 years. Permanent teeth of both the first and the second transitional periods were already emerging at the age of 3.5–5 years and 6.5–8 years, respectively. At 3.5–5 years, 9% of the permanent teeth belonging to the first transitional period were already in occlusion. Emergence of incisors and first molars was more advanced in girls than in boys in age groups 3.5–5 and 6.5–8 years.Conclusions: Parallel to earlier reports on different ethnic groups, the results of this study indicate that the permanent teeth of Tanzanian children erupt earlier in girls than in boys, and the mandibular teeth erupt earlier than the corresponding maxillary teeth. The difference between boys and girls was found in both the first and second transitional period. Permanent teeth in Tanzanian children clearly emerge earlier than in Caucasian children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0528.2002.00020.x
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  • 4
    Electronic Resource
    Electronic Resource
    A meta-analysis of the prevalence of dental agenesis of permanent teeth (2004)
    Oxford, UK : Munksgaard International Publishers
    Community dentistry and oral epidemiology 32 (2004), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract –  Objective: To gain more insight into the prevalence of dental agenesis. Methods: Data from Caucasian populations in North America, Australia and Europe were included in a meta-analysis. For the prevalence of African American, Chinese and Arab groups only indications could be reported because of a limited number of studies. Results: Agenesis differs by continent and gender: the prevalence for both sexes was higher in Europe (males 4.6%; females 6.3%) and Australia (males 5.5%; females 7.6%) than for North American Caucasians (males 3.2%; females 4.6%). In addition, the prevalence of dental agenesis in females was 1.37 times higher than in males. The mandibular second premolar was the most affected tooth, followed by the maxillary lateral incisor and the maxillary second premolar. The occurrence of dental agenesis was divided into three main groups: common (P2i 〉 I2s 〉 P2s), less common (I1i 〉 I2i & P1s 〉 Cs & M2i) and rare (M2s & M1s 〉 Ci 〉 M1i & I1s). Unilateral occurrence of dental agenesis is more common than bilateral occurrence. However, bilateral agenesis of maxillary lateral incisors is more common than unilateral agenesis. The overall prevalence of agenesis in the maxilla is comparable with that in the mandible, but a marked difference was found between both jaws regarding tooth type. Absence of one or two permanent teeth is found in 83% of the subjects with dental agenesis. A practical application of the results of the meta-analysis is the estimation of dental treatment need.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.2004.00158.x
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  • 5
    Electronic Resource
    Electronic Resource
    Two-center clinical trial of implant–retained mandibular overdentures versus complete dentures – chewing ability (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 24 (1996), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract This study is a two-center clinical trial with the aim to assess the treatment effects of implant-retained mandibular overdentures versus conventional complete dentures. Treatment had been assigned according to a balanced allocation method. The following criteria were used to enhance the comparability of the treatment groups: age, gender, the edentulous period of the mandible, the number of previously made mandibular dentures, the number of years having worn the present mandibular denture and the symphyseal bone height. 151 patients with severely resorbed mandibles participated in the study, they were treated at two centers. Ninety-one patients received an implant-retained mandibular overdenture (IRO) and 60 patients a conventional complete denture (CD). Since some patients refused the allocated treatment the “Intention To Treat” principle was applied. This implies that patients are evaluated in the originally allocated treatment group regardless of the actual treatment they received. Patient's experiences were evaluated before treatment and I yr after insertion of the new dentures. Results before treatment showed that both treatment groups were comparable: they were dissatisfied with their mandibular denture and they could hardly chew tough or hard foods. One year after insertion of the new dentures the IRO-group was satisfied with their mandibular denture, whereas only one third of the CD-group was satisfied. With respect to the chewing ability the IRO-group scored significantly better than the CD-group (P〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:03015661:CDOE79:les" location="les.gif"/〉0.0001).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1996.tb00818.x
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  • 6
    Electronic Resource
    Electronic Resource
    A meta-analysis of durability data on conventional fixed bridges (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 22 (1994), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract A meta-analysis was performed on the dental literature since 1970, presenting clinical data of conventional bridges. 42 publications were found that contained durability data of conventional fixed bridges. These publications dealt with 33 different samples. According to the exclusion criteria 26 studies were excluded for the meta-analysis. The data of 4118 conventional bridges were analyzed. The calculated overall survival rate was 74.0 ± 2.1% after 15 yr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1994.tb00795.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of glass ionomer sealants in newly erupted first molars after 5 years: a pilot study (2003)
    Oxford, UK : Munksgaard International Publishers
    Community dentistry and oral epidemiology 31 (2003), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – Objectives: The aim of the study was to investigate the caries-preventive effect of high-filled glass ionomer sealant in newly erupted first molars in a high-risk group. This investigation is part of a larger study amongst eight hundred and thirty-five 6–7-year-old Syrian children.Methods: Children that had 1, 2 or 3 just erupted or erupting and at least one unerupted first molar (control) were enrolled in this pilot study. A total of 60 children fulfilled the inclusion criteria. There were 49 children with a total of 83 sealants available for examination at the evaluation year 5.Results: Almost two out of the three sealants (69%) had disappeared between evaluation years 2 and 3. 1.2% (SE = 1.2) of the sealants survived were fully retained and 10.3% (SE = 3.3) of the sealants survived were fully and partially retained at the evaluation year 5. Caries prevalence of the children in the study group at the evaluation year 5 was 55%. The Odds ratio concerning sealed and control group at year 5 was 2.6 with 95% confidence limits of 1.2 and 5.7, implying a relative risk (RR) of 2.1. Unsealed unerupted first molars had 2.1 times higher chance than sealed newly erupted first molars to develop dentinal lesions in this child population after 5 years.Conclusions: It is concluded that sealing newly erupted first molars with high-filled glass ionomer may be a caries-preventive measure in high-risk children. However, a well-designed clinical trial should be implemented to confirm the initial findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0528.2003.00039.x
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  • 8
    Electronic Resource
    Electronic Resource
    Validation of a Swiss method of caries prediction in Dutch children (2001)
    Copenhagen : Munksgaard International Publishers
    Community dentistry and oral epidemiology 29 (2001), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – Objective: This study aimed to validate a caries prediction method, the Dentoprog-Method, which was developed on Swiss children. Method: A Dutch child population was used for validation. The diagnosis of caries, age of the children and the caries experience were slightly different from the population from which the Dentoprog-Method was developed. With the Dentoprog-Method, Dutch children were ranked in increasing order of high caries risk probability. The measure of prediction was expressed in sensitivity and specificity, which were calculated at 10% risk probability intervals for each class of “high” caries increment and for different forecast periods. ROC curves presenting sensitivity as a function of (100-specificity) were employed to summarize the obtained information. The area under the ROC curve was used as a measure of predictive accuracy. Results: The area under the ROC curves for various caries increment classes of 7.5-year-old and 9.5-year-old Dutch children was in the range of the area under the ROC curves of Swiss children. Conclusion: This analysis indicated that the Dentoprog-Method when applied on a sample of Dutch children was robust enough to overcome small differences in caries diagnosis, age and caries experience.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.2001.290503.x
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  • 9
    Electronic Resource
    Electronic Resource
    Orthodontic treatment need prior to treatment and 5 years postretention (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 26 (1998), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objectives: To assess orthodontic treatment need prior to treatment and 5 years postretention in a large university sample. Methods: A random sample of 920 patients (400 male and 520 females) from the Department of Orthodontics and Oral Biology, University of Nijmegen, the Netherlands, were included in this study. Dental casts were evaluated using the Index of Orthodontic Treatment Need (IOTN) at the pretreatment (TP) and 5-year postretention stages (T5). The mean age at TP was 12.2±3.0 years and at T5 21.6±3.1 years. At TP and T5 the aesthetic component (AC) and the dental health component (DHC) were assessed The difference between TP and T5 was compared for males and females and tested by the t-test. The changes in AC, DHC and treatment need categories were described at TP and at T5. Results: On the basis of combined AC and DHC treatment need categories, 83% of the patients fell into the Definite e need d category prior to treatment and 10% of the treated patients were categorised as having “Definite need” 5 years postretention. No significant differences were found between males and females for the change in AC and DHC between TP and T5. Conclusions: The results indicate that the policy used in the department for patient selection gives priority to patients with a high treatment need. The results also provide a general impression of treatment outcome utilising the IOTN to analyse the change in the treatment need categories.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1998.tb01982.x
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  • 10
    Electronic Resource
    Electronic Resource
    Treatment time analysis for extensive amalgam restorations (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 15 (1987), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The treatment times for the fabrication of Extensive Amalgam Restorations (EAR) as recorded in a longitudinal clinical trial at the Dental School in Nijmegen were analyzed. 269 EAR's with different retention methods were made on molars by three operators. A mean total treatment time of 60 min was found. The factor operator had a significant influence on all treatment phases resulting in a 26% difference in total treatment time between operators. Also significant influences were found in some treatment phases for the factor retention, side location of the tooth and extension of the restoration. The results of this study with regard to treatment times must be considered from the perspective of the quality of the care provided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1987.tb00517.x
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