| 21. |
- Falk Kieri, Catarina, et al.
(author)
-
Use of radiography in public dental care for children and adolescents in northern Sweden.
- 2009
-
In: Swedish Dental Journal. - 0347-9994. ; 33:3, s. 141-8
-
Journal article (peer-reviewed)abstract
- The primary aims were to investigate the total number of radiographs and the reason for dental radiography in children and adolescents in the Public Dental Health Service. Secondary aims were to study the influence of caries experience and orthodontic treatment on the number of radiographs. For this retrospective study, 544 adolescents regularly attending three Public Dental Health clinics in the county of Västerbotten, northern Sweden were selected. The number of radiographs exposed each year from 3 to 19 years of age was registered. Information on reason for the radiographic examination was extracted from dental records as well as the caries experience at 19 years of age. The attrition rate was 7% due to incomplete data. The total mean number of radiographs exposed was 23+/-6 of which 1+/-2 were extra-oral radiographs. Bitewing radiographs for caries registration constituted 87% of the intra-oral radiographs with a mean number of 19+/-4 exposures. There was a statistically significant difference (p<0.01) between subjects with caries experience (20+/-4) and those with no caries (16+/-4). No gender-related differences were displayed. During preschool ages, bitewing radiographs were taken in less than 10% of the children. Children treated at specialist clinics in orthodontics displayed higher number of radiographic examinations than non-referred children (p<0.01). CONCLUSION: A mean of 23 radiographs were exposed and bitewings for caries detection were the most common radiographic examination. Fewer bitewing radiographs were exposed in caries-free subjects over time but its use during the preschool ages was low. Orthodontics treatment increased the frequency of radiography significantly.
|
|
| 22. |
- Follin, Marie, 1947, et al.
(author)
-
Detection of lingual root resorptions in the intraoral radiographs. An experimental study.
- 2005
-
In: Swedish dental journal. - 0347-9994. ; 29:1, s. 35-42
-
Journal article (peer-reviewed)abstract
- An experimental study was undertaken in an attempt 1) to describe the possibilities to detect lingual root resorptions of upper incisors in intraoral radiographs and 2) to determine the amount of reduction that is necessary in order to detect resorptions in the radiograph. The upper right central incisor was extracted from a dry skull. In a standardized way, the root was repeatedly reduced by grinding on the lingual side at an angle of 16 degrees measured from apex to the long axis of the tooth. After each reduction the tooth was replaced in the dry skull and radiographed in a standardized manner. The radiographs were placed in two different charts and at random within each chart. On two different occasions three groups of observers, 5 orthodontists, 5 pedodontists and 5 radiologists were asked to register any detected "root resorptions" on the right first and second incisors. The first chart included radiographs with a reduction of 0-3 mm and the second chart 0-6 mm. The orthodontists and pedodontists were not very consistent in their observations and false positive registrations were very frequent. The radiologists were more accurate in their observations and detected resorptions when the reduction incorporated the apex of the root at a 3 mm level. Thus, intraoral radiographs seems to be a very blunt instrument for detecting lingual root resorptions.
|
|
| 23. |
- Gabre, Pia, et al.
(author)
-
A 20-year study of dentists' and dental hygienists' assessment of dental caries lesions in bite-wing radiographs.
- 2006
-
In: Swedish dental journal. - 0347-9994. ; 30:1, s. 35-42
-
Journal article (peer-reviewed)abstract
- Epidemiological data reveal that the prevalence of dental caries in western countries has decreased in recent decades. The aim of this study was to investigate how dentists and dental hygienists assess dental caries lesions in bite-wing radiographs between 1983 and 2003. All dentists and dental hygienists in Public Dental Health in Uppsala County were offered to take part in the study. The participants assessed manifest and initial caries lesions in eight bite-wing radiographs from three patients individually. An X-ray viewer and binoculars were used. The assessments were repeated in the same radiographs every five years, a total of five times, between 1983 and 2003. In the different test occasions 80-103 dentists and 11-48 dental hygienists participated. The registration of dental caries changed between 1983 and 2003. The number of manifest lesions registered by dentists decreased between 1983 and 1988, but were stable after 1988. Dental hygienists showed no changes in the registration of manifest lesions during the study. Initial lesions registered by dentists and dental hygienists increased between 1988 and 1998. Assessments of initial caries lesions displayed a wider range than manifest lesions. Increasing age and more years in the profession resulted in fewer registered initial caries lesions. Dental hygienists had a tendency to register less caries than dentists. In conclusion, the result of the study indicate that inclusion of initial caries lesions in epidemiological reports should lead to a reduction in reliability. The changes in assessments of manifest caries lesions that took place in the 19805s should be considered when epidemiological data are evaluated.
|
|
| 24. |
- Granholm, Carina, et al.
(author)
-
Oral mucoceles; extravasation cysts and retention cysts. A study of 298 cases.
- 2009
-
In: Swedish dental journal. - 0347-9994. ; 33:3, s. 125-30
-
Journal article (peer-reviewed)abstract
- Oral mucoceles can be divided in two different forms, extravasation and retention cysts. The aim of this study was to identify the frequency of each form, sex- and age distribution, location, recurrences, referent and the differences between the two forms. A total of three-hundred-five cases were retrieved from the Department of Oral Pathology at the Institution of Odontology, The Sahlgrenska Academy at Göteborg University between 1993 and 2003. Seven referrals were disregarded because there was insufficient information, leaving 298 cases for this study. In relation to other studies, our study investigated a larger number of cases. Extravasation cysts were the most common type (258 cases). There was a slight predominance among women (55%) and the most frequent location was the lower lip (71%). 84% occurred between the ages of 0 and 40 years with peak incidence in the second decade (34%). 62% of the referrals came from specialists, 28% from general practitioners, and 10% from the Department of Oral Medicine. Retention cysts were not found as frequently as extravasation cysts (40 cases) and the occurrence in women was also a bit higher (58%). We found a more even distribution regarding age and location. The most common locations were floor of the mouth (25%), cheek (20%), and lower lip (18%). They occurred more often between the ages of 11 and 30 (31%), and between 50 and 80 (50%). 75% of the referrals came from specialists, 15% from general practitioners,and 10% from the Department of Oral Medicine. Recurrences were unusual for both cyst types. 17 cases of extravasation cysts were reported as recurrences and one case of retention cyst.
|
|
| 25. |
- Grönqvist, Johan, et al.
(author)
-
Impaired jaw function and eating difficulties in Whiplash-associated disorders
- 2008
-
In: Swedish Dental Journal. - 0347-9994. ; 32:4, s. 171-177
-
Journal article (peer-reviewed)abstract
- Eating requires mouth opening, biting, chewing and swallowing and should be performed without dysfunction or pain. Previous studies have shown that jaw opening-closing movements are the result of coordinated activation of both jaw and neck muscles, with simultaneous movements in the temporomandibular, atlanto-occipital and cervical spine joints. Consequently, it can be assumed that pain or dysfunction in any of the three joint systems involved could impair jaw activities. In fact, recent findings support this hypothesis by showing an association between neck injury and reduced amplitudes, speed and coordination of integrated jaw-neck movements. This study investigated the possible association between neck injury and disturbed eating behaviour. Fifty Whiplash-associated disorders (WAD) patients with pain and dysfunction in the jaw-face region and 50 healthy age- and sex-matched controls without any history of neck injury participated in the study. All participants were assessed by a questionnaire, which contained 26 items about eating behaviour, jaw pain and dysfunction. For the WAD group there were significant differences in jaw pain and dysfunction and eating behaviour before and after the accident, but no significant differences between WAD before and healthy. The healthy and the WAD group before the accident reported no or few symptoms. The WAD patients after the accident reported pain and dysfunction during mouth opening, biting, chewing, swallowing and yawning and felt fatigue, stiffness and numbness in the jaw-face region. In addition, a majority also reported avoiding tough food, big pieces of food, and taking breaks during meals. Altogether, these observations suggest an association between neck injury and disturbed jaw function and therefore impaired eating behaviour. A clinical implication is that examination of jaw function should be recommended as part of the assessment and rehabilitation of WAD patients.
|
|
| 26. |
- Hagman-Gustafsson, Marie-Louise, et al.
(author)
-
Who cares for the oral health of dependent elderly and disabled persons living at home? A qualitative study of case managers' knowledge, attitudes and initiatives.
- 2008
-
In: Swedish dental journal. - 0347-9994. ; 32:2, s. 95-104
-
Journal article (peer-reviewed)abstract
- In 1999 a new law in Sweden granted people receiving a certain level of supportive care from the community the right to receive a free, in-home oral health assessment. Subsequent appraisal has disclosed that far from all eligible people, especially those living at home, have undergone such an assessment. Of fundamental importance to the success of this scheme is the active involvement of case managers in identifying those who are eligible for assessment. The aim of this study was to investigate case managers' knowledge of and attitudes to the oral health of their clients and the initiatives they take to ensure that dependent elderly and disabled persons living at home have access to oral health care. In qualitative in-depth interviews, 24 case managers from three Swedish counties were questioned about their perceptions of oral health care for their clients. The transcribed text was analysed by manifest and latent qualitative content analysis. The manifest analysis was based on the three content areas knowledge, attitudes and initiatives. During this process a theme emerged which disclosed the case managers' perceptions of their role in oral health care among elderly and disabled persons, a latent analysis. The case managers' age, education, experience and breadth of responsibilities varied. Their knowledge of the 1999 law was limited. In general there were no procedures in place to ensure that the oral assessments were undertaken and that records were kept. The case managers considered that they should not be responsible, although they could not suggest a more appropriate instance. The potential role of regular oral health assessment in prevention of oral diseases was not discussed at all in the interviews. The current systems for monitoring oral health are tailored primarily to institutionalised care. In future many more dependent people will continue to live at home with support from community home care assistants and relatives. It is important that oral health care activities, as well as research, are modified accordingly.
|
|
| 27. |
|
|
| 28. |
- Heijs, Suzanne C B, et al.
(author)
-
Morphology and chemical composition of dentin in permanent first molars with the diagnose MIH.
- 2007
-
In: Swedish dental journal. - 0347-9994. ; 31:4, s. 155-64
-
Journal article (peer-reviewed)abstract
- The purpose of this investigation was to study the morphology and distribution of some inorganic elements in dentin in first permanent molars from children with Molar-Incisor Hypomineralization (MIH). Sixty four tooth sections from thirty two children were examined in polarized light. Fifteen representative sections were selected for SEM/XRMA analysis; 5 were used for SEM analysis and 10 for XRMA analysis. No morphological changes in the dentin were revealed in polarized light microscopy (PLM). However, in all but two sections interglobular dentin was found. The SEM analyzes confirmed the findings of the PLM with no structural changes to be found in the dentin. The XRMA results showed a difference in the concentration of elements between dentin below normal and dentin below carious or hypomineralized enamel. Elements related to organic matter appeared with higher values in dentin below hypomineralized and carious enamel. The morphological and chemical findings in dentin below hypomineralized enamel imply that the odontoblasts are not affected in cases of MIH, but may be affected by hypocalcemia, reflected by the presence of interglobular dentin.
|
|
| 29. |
- Hellén-Halme, Kristina, et al.
(author)
-
Dental digital radiography : a survey of quality aspects
- 2005
-
In: Swedish Dental Journal. - : Swedish Dental Association. - 0347-9994. ; 29:2, s. 81-87
-
Journal article (peer-reviewed)abstract
- The aim was to evaluate the experiences of Swedish general dental practitioners (GDPs) with digital radiography and their opinion on the same, particularly regarding quality issues. A letter was sent to all GDPs in private care in Region Skåne, Sweden, asking whether they used digital radiography (n=513). The response rate was 79%. The number of private GDPs who replied that they used digital radiography was 106. The Public Dental Service in Region Skåne listed 33 GDPs who worked with digital radiography. Based on these answers, a questionnaire was sent to the GDPs working with digital radiography (n=139). The questionnaire comprised 27 questions about the dentists, the system of intra-oral digital radiography, and the GDPs’ experiences of and opinions on issues regarding image quality and quality control. The response rate to the questionnaire was 94%. Almost all, 92%, worked with charge-coupled device (CCD) and complementary metal oxide semiconductor (CMOS) sensors. Most GDPs were satisfied with their digital radiographic system. The majority (65%) experienced problems. Detector failure and trouble with the software were common. The GDPs wrote that they used lower exposure times in digital radiography than traditional film radiography. The estimated reduction in exposure time was said to be between 51% and 75%. Thirtyfive per cent continued to use film parallel with digital radiography. The answers indicated that less than half of the equipment (40%) underwent quality control. Quality controls, when conducted, were undertaken once or twice a year, mainly by technicians from the companies that had sold the digital equipment. Based on the results of the questionnaire, there seems to be a need to improve the maintenance and the quality of digital radiography. It is also important that the GDPs become more aware of the problems that can occur when a new technique is introduced and that they develop the skills to handle these problems.
|
|
| 30. |
- Henrikson, Thor, et al.
(author)
-
Can orthodontic treatment improve mastication? A controlled, prospective and longitudinal study
- 2009
-
In: Swedish Dental Journal. - 0347-9994. ; 33:2, s. 59-65
-
Journal article (peer-reviewed)abstract
- OBJECTIVES: To prospectively and longitudinally evaluate the self-perceived masticatory ability and the tested masticatory efficiency in orthodontically treated and untreated groups. DESIGN: Prospective observational cohort. SUBJECTS AND METHODS: Three groups of age matched adolescent girls were included. Sixty-five Class II subjects received orthodontic treatment fixed appliance treatment (Orthodontic group), 58 subjects were orthodontically untreated (Class II group) and 60 subjects had a normal occlusion (Normal group).The self-perceived masticatory ability was assessed on a visual analogue scale while the masticatory efficiency was evaluated with a masticatory efficiency test using round silicon tablets. Registrations were performed at the start and after two years when all subjects in the Orthodontic group had finished orthodontic treatment. RESULTS: Over the two-year period the self-perceived masticatory ability increased significantly in the Orthodontic group. After treatment, the Orthodontic group perceived their masticatory ability as high as the Normal group did. The masticatory efficiency increased significantly, during the two years, in all three groups. However,the normal occlusion group presented a significantly better masticatory efficiency than both the Orthodontic group and the Class II group on both registrations. CONCLUSIONS: Orthodontic treatment was beneficial for the self-perceived masticatory ability. The masticatory efficiency increases with age during adolescence. Normal occlusion subjects had a better masticatory efficiency than subjects with orthodontically treated as well as untreated Class II malocclusion.
|
|
