Reasons for Permanent Tooth Extractions in Japan

Aida, Jun; Ando, Yumiko; Akhter, Rahena; Aoyama, Hitoshi; Masui, Mineo; Morita, Manabu

doi:10.2188/jea.16.214

Cited by 202 publications

(226 citation statements)

References 21 publications

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“…Fracture as a sequela of caries has been shown to be one of the main reasons for permanent tooth extractions [19][20][21][22][23] . In the same connection, the number of tooth extractions can be reduced effectively by preventing fractures, especially vertical root fracture.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, root fractures are not expected to occur often, and that the fracture pattern will not be very severe when using prefabricated glass Received Jan 23,2009: Accepted May 20, 2009 fiber posts [16][17][18] . Nonetheless, root fracture is one of the major causes leading to tooth extraction.…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, root fracture is one of the major causes leading to tooth extraction. Hence, it is highly desirable to prevent fractures or limit the fracture line to the suprabony area [19][20][21][22][23] . Some researchers have reported methods of reinforcing thin root canal dentin wall with resin composites [24][25][26][27] .…”

Section: Introductionmentioning

confidence: 99%

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Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

et al. 2009

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This study was aimed at evaluating the fracture resistance of structurally compromised roots restored with four different post and core systems. Thirty-two bovine roots were uniformly shaped to simulate human mandibular premolar roots. The roots were divided into four groups based on the type of restoration: cemented cast post and core (Group MC), resin composite build-up (Group CR), resin composite and prefabricated glass fiber post build-up (Group FRC), and thick-layer dual-cured resin composite-reinforced smalldiameter tapered cast post and core (Group CRM). After a static loading test, the failure mode and fracture resistance were recorded. Group CRM (719.38±196.73 N) exhibited a significantly high fracture resistance compared with the other groups (Group MC: 429.56±82.43 N; Group CR: 349.56±66.21 N; Group FRC: 398.94±112.71 N; p<0.05). In conclusion, Group CRM exhibited better mechanical properties for structurally compromised roots with no ferrules, although all types of restorations showed non-restorable fracture modes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

et al. 2009

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“…In its advanced form, disease progresses with the loss of collagen fibers and attachment to the cementum surface, apical migration of the pocket epithelium, formation of deepened periodontal pockets, and resorption of alveolar bone, and finally, if left untreated, may result in tooth loss [2]. The loss of one or more teeth negatively affects individual's oral health and quality of life because it reduces a person's facial esthetics and can hamper speech and mastication.…”

Section: Introductionmentioning

confidence: 99%

Is There a Role for Neural Crest Stem Cells in Periodontal Regeneration?

Tomokiyo

Hynes

Gronthos

et al. 2015

Curr Oral Health Rep

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“…The prevalence of dental caries and periodontal disease in middle-aged individuals has not changed in recent years (Ministry of Health, Labour and Welfare, Japan 2011). As these are the major reasons for tooth loss (Aida et al 2006), their prevention in adults is important and yet a major challenge.…”

Section: Introductionmentioning

confidence: 99%

Adult Oral Health Programs in Japanese Municipalities: Factors Associated with Self-Rated Effectiveness

Yamamoto

Fuchida

Aida

et al. 2015

Tohoku J. Exp. Med.

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Health Japan 21 plan establishes specific targets for aspects of health including oral health for 2010, in an effort to increase health expectancy. Despite this, there has been insufficient improvement in oral health status in adults. The objective of this cross-sectional study was to determine the factors associated with effective oral health programs for adults in Japanese municipalities. Questionnaires were mailed to all 1,472 municipalities in Japan and responses were obtained from 862 municipalities (response rate: 58.6%). After excluding 71 municipalities with "unknown" answer, no answer, or lack of relevant information, we analyzed the data from the remaining 791 municipalities with or without oral health programs for adults selfreported as effective within three years. Multilevel Poisson regression models were used to examine the associations of effective programs with oral health personnel, contact with related agencies, the establishment of Health Japan 21 goals, financial status, the density of dentists and population density at the municipality level, and having oral health personnel at the prefecture level. Three hundred and fifty-four municipalities reported having effective programs. In the fully adjusted model, having dental hygienists in the municipal office (P < 0.05) and a high number of contacts with related agencies (P < 0.05) were significantly associated with having effective programs. These results suggest that having dental hygienists and contact with related agencies such as residents, local dental associations, companies, community general support centers, or medical, nursing or welfare facilities are promoting factors for effective adult oral health programs in Japanese municipalities.

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Reasons for Permanent Tooth Extractions in Japan

Cited by 202 publications

References 21 publications

Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

Effect of reinforcement with resin composite on fracture strength of structurally compromised roots

Is There a Role for Neural Crest Stem Cells in Periodontal Regeneration?

Adult Oral Health Programs in Japanese Municipalities: Factors Associated with Self-Rated Effectiveness

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