Publications by authors named "Rigmor Persson"

Purpose: This study identifies clinical factors that predict multiple tooth loss in a socioculturally diverse population of older adults.

Materials And Methods: A total of 193 participants from English-, Chinese-, or Punjabi-speaking communities in Vancouver, British Columbia, with low incomes and irregular use of dental services were followed for 5 years as part of a clinical trial of a 0.12% chlorhexidine mouthrinse.

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Background: Due to the increasing number of older people, there is a need for studies focused on this population. The aims of the present study are to assess oral and systemic conditions in individuals aged 60 to 95 years with access to dental insurance.

Methods: Probing depths (PDs), tooth loss, alveolar bone levels, and systemic health were studied among a representative cohort of older individuals.

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Objectives: Information on the significance of dental care in older adults is limited. We hypothesized that regular dental visits has an effect on the number of remaining teeth and periodontal conditions in older subjects.

Materials And Methods: 1020 randomly selected individuals age 60 - 96 from the Swedish National Study on Aging and Care Blekinge received a comprehensive oral health examination.

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Aim: The validity of the risk assessment in predicting tooth loss due to periodontitis or disease progression was explored.

Methods: Systemic factors, smoking status, bleeding on probing (BoP) percentage, number of residual pockets (probing pocket depth ≥6 mm), tooth loss, and alveolar bone loss in relation to age were the variables of the risk assessment. Based on an improving or deteriorating risk assessment in 2005 compared with 1999, 89 patients were divided into either a high- or low-risk group.

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Background: The use of endosseous dental implants has become common practice for the rehabilitation of edentulous patients, and a two-implant overdenture has been recommended as the standard of care. The use of small-diameter implants may extend treatment options and reduce the necessity for bone augmentation. However, the mechanical strength of titanium is limited, so titanium alloys with greater tensile and fatigue strength may be preferable.

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Abstract Objective. We assessed the relationships between (I) ultrasonography calcaneus T-scores (PIXI) and mandibular cortex characteristics on oral panoramic radiographs in older subjects; and (II) osteoporosis and periodontitis. Material and methods.

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Purpose: In a prospective study, we assessed if a diagnosis of osteoporosis and periodontitis could predict hip and hand fractures in older persons.

Materials And Methods: Bone density was assessed by a Densitometer. Periodontitis was defined by evidence of alveolar bone loss.

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Background: The objective of this study was to assess the oral microbiota and clinical data in subjects without access to traditional oral hygiene methods and who ate a diet available in the Stone Age.

Methods: Ten subjects living in an environment replicating the Stone Age for 4 weeks were enrolled in this study. Bleeding on probing (BOP), gingival and plaque indices, and probing depth (PD) were assessed at baseline and at 4 weeks.

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Background: Gingivitis has been linked to adverse pregnancy outcome (APO). Bacterial vaginosis (BV) has been associated with APO. We assessed if bacterial counts in BV is associated with gingivitis suggesting a systemic infectious susceptibilty.

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Unlabelled: Changes in the levels of female sex hormones during the menstrual cycle may cause cyclic differences in subgingival bacterial colonization patterns. The purpose of the present study was to test the hypothesis that hormonal changes in the menstrual cycle cause changes in the oral microbiota.

Methods: Bacterial plaque samples were collected in 20 systemically and periodontally healthy women using no hormonal contraceptives (test group) over a period of 6 weeks.

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Background: Associations between periodontitis and cardiovascular diseases have been recognized.

Material And Methods: New literature since the last European Workshop on Periodontology has been reviewed.

Results: The lack of reliable epidemiological data on disease prevalence makes an assessment of the associations and risks between periodontitis and cardiovascular diseases difficult.

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Background: Information on the subgingival microbiota in parous women is limited. The present study assessed 74 bacterial species at periodontal sites.

Methods: Subgingival bacterial plaque was collected from women > or =6 months after delivery.

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Background: Information on the efficacy of chlorhexidine (CHX) rinsing on the subgingival microbiota is limited. This study tested if intermittent CHX rinsing over 5 years had an impact on the subgingival microbiota.

Methods: Subgingival plaque samples were analyzed by the checkerboard DNA-DNA hybridization method in a double-blind randomized CHX rinse study.

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There is limited information regarding oral health status and other predictors of oral health-related quality of life. An association between oral health status and perceived oral health-related quality of life (OHQOL) might help clinicians motivate patients to prevent oral diseases and improve the outcome of some dental public health programs. This study evaluated the relationship between older persons' OHQOL and their functional dentition, caries, periodontal status, chronic diseases, and some demographic characteristics.

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Background: The impact of smoking habits on periodontal conditions in older subjects is poorly studied.

Aims: To assess if a history of smoking is associated with chronic periodontitis and medical history in older subjects.

Material And Methods: The medical and dental history was collected from 1084 subjects 60-75 years of age.

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The increasing population of older subjects with dental care needs will become a major challenge to our society and its care providers. To manage the health care needs of the elderly, a coordination between medical and dental care providers will become necessary. From the dental perspective, it is important to develop skills in the risk assessment of older patients.

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Background: Multi-factorial risk models have been proposed to enhance the ability to predict risk for the progression of treated chronic periodontitis.

Aims: to study if the outcomes of supportive periodontal therapy (SPT) based on a multi-factorial periodontal risk assessment are influenced by IL-1 gene polymorphism (IP) status.

Material And Methods: Information about the IP and smoking status, clinical periodontal conditions and age related bone level measurements were used to calculate a peridontal risk assessment model (PRA).

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Background: Few studies have examined the association between periodontitis risk, gender, and marital status in older adults. The purpose of this study was to assess if the oral health status of older subjects could be explained by differences in: 1) marital status; 2) gender; and 3) ethnicity.

Methods: Clinical and radiographic periodontal oral conditions were studied in 701 older subjects from the TEETH clinical trial.

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Background: Information about the agreement between intra-oral (I-O) and panoramic (OPG) radiographs is limited.

Aims: : (1) To assess the agreement between I-Os and OPGs for direct measurements of the distance between the cemento-enamel junction (CEJ) and the alveolar bone level (BL) as well as the proportional values in relation to the root length (CEJ-BL/root length), and (2) to explore the symmetry between the left- and right-side measurements.

Material And Methods: I-Os and OPGs were studied in 292 periodontal maintenance subjects (mean age 55.

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Epidemiological studies consistently have found differences in oral health status between white and non-white elders. This has been attributed primarily to lack of access to dental care, especially preventive services. The study reported here examined psychosocial factors in an attempt to explain these differences.

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Objectives: Recruitment for randomised clinical trials and community-based studies has received little attention in the dental literature. The goal of this study was to report on our experiences with direct and indirect recruitment methods for a trial to prevent tooth loss in elders.

Methods: A direct approach, consisting of an introductory lecture with the help of a local contact person in each of the nine community centres, resulted in 208 recruits mostly from minority non-English speaking communities (52%), whereas the other 192 recruits who responded to newspaper announcements (48%) were, in large part, from the English-speaking community.

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