Since April 2012, insurance coverage has become available in Japan for orthodontic treatment in cases of oligodontia, which has increased interest in orthodontic treatment among general dentists, ...parents, and patients. The difficulty associated with the treatment of a congenital absence of teeth in a patient is often evaluated based on the number of missing teeth, the difficulty of treatment is also influenced by the sites of absence, thus we think further research is important. We examined 54 patients (19 males, 35 females) diagnosed with oligodontia whose ages at the initial visit ranged from 7 years and 1 month to 14 years and 9 months (Hellman dental developmental stage ranging from IIIA to IVA). Most patients had missing maxillary and mandibular second premolars, however the distribution of missing teeth across the maxilla and mandible was found to vary among patients, with most cases showing non‐matching missing tooth locations. These findings suggested the need for individualized diagnoses and appropriate treatment planning for comprehensive dental care, including prosthetic treatment. If necessary, it may be essential to consider early orthodontic treatment to take into account future craniofacial growth and teeth alignment. (J Osaka Dent Univ 2024; 58: 355-363)
Epidemiologic and cancer control studies on the association of periodontal disease and cancer risk mostly suggest a positive association with overall cancer risk and certain specific types of cancer. ...These findings are generally consistent among cross‐sectional and longitudinal studies. In this paper, we review epidemiologic studies and current knowledge on periodontal disease and cancer, with a focus on those studies conducted in the years following the Joint European Federation of Periodontology/American Academy of Periodontology Workshop on “Periodontitis and Systemic Diseases” in November 2012. This review also explores the role of chronic inflammation as a biologically plausible mechanistic link between periodontal disease and risk of cancer. Furthermore, it highlights studies that have examined the potential importance of certain periodontal pathogens in this association.
Background: Replacement of missing tooth plays an important role in patient’s comfort and self-esteem.
Aims and Objectives: The aims of this study were to investigate the most commonly used ...impression materials and techniques practiced for crowns and bridgework by prosthodontists and general dental practitioners compared to the theoretical methods suggested in the literature and to determine the clinical factors that might influence the decision-making process for the selection of impression materials and techniques.
Materials and Methods: Pre-tested and pre-validated structured and closed-ended anonymous questionnaire was shared with general dental practitioners and prosthodontists.
Results: Most of the prosthodontists use diagnostic impression compared to general dental practitioners (P<0.01). Full-arch tray was used by general dental practitioners significantly more frequently compared to prosthodontists (P<0.01) for single anterior, single posterior, anterior, and posterior bridge preparations. Alginate hydrocolloid was used by general dental practitioners significantly more than prosthodontists (P<0.05); however, addition silicone and condensation silicone were used by prosthodontists significantly more than general dental practitioners (P<0.05). For the impression technique followed in case of using elastomeric impression materials, the prosthodontists used the two-step putty reline technique with spacer more commonly, while general dental practitioners used the multiple mix technique (P<0.01). For the use of provisional restoration for single tooth crowns and for all the bridges, prosthodontists used provisional restoration in significantly higher proportion as compared to general dental practitioners (P<0.01).
Conclusion: According to our study compared to general dental practitioners, practices of the prosthodontists regarding use of fixed partial denture is more in line with the current global trend.
Objectives
This retrospective study aimed to investigate the differences in tooth loss rate between fixed implant‐supported prostheses (FISPs) and removable partial dentures (RPDs) in cases of ...unilateral free‐end missing teeth.
Materials and Methods
The data of 324 patients who underwent treatment with FISPs or RPDs for unilateral free‐end missing teeth and satisfied the applicable criteria, were evaluated (47 in the FISPs group and 277 in the RPDs group). After propensity score (PS) matching, which was used to extract patients with similar background factors related to prosthetic selection at baseline, survival time analyses were performed with tooth loss as the endpoint. The adjusted variables were age, sex, number of restored teeth, periodontal status, and the practicing dentist's experience in years. The remaining teeth were classified into subcategories in relation to the missing molars.
Results
Overall, 58 patients (29 in each group) selected by PS matching were evaluated in the final analysis. The total number of lost teeth was 35 (FISPs group: n = 10; RPDs group: n = 25). The mean (±SD) period to tooth loss and the 10‐year survival rates in the FISPs and RPDs groups were 51.6 (±30.1) months and 42.3 (±29.7) months, 70.5% and 16.4%, respectively. The log‐rank test showed that significantly longer survival time in FISPs compared with RPDs.
Conclusions
After adjustments for confounding factors using PS matching, replacing unilateral free‐end missing teeth with FISPs may exhibit a lower tooth loss rate in adjacent and contralateral teeth compared to replacing with RPDs.
Patients diagnosed with jaw deformity after middle age often have periodontal disease and missing teeth. In such cases, periodontal and prosthetic treatment is required in addition to orthodontic ...treatment. Therefore, surgical orthodontic treatment for middle-aged patients requires a more careful approach than for younger patients. This is a report of two representative cases. Case 1: A 51-year-old male patient with the chief complaint of masticatory dysfunction by anterior cross bite was referred to our hospital. A diagnosis of mandibular prognathism was made and surgical orthodontic treatment was initiated. This patient had severe periodontal disease and missing teeth, which required periodontal treatment combined with periodontal surgery and prosthetic treatment before the surgical orthodontic treatment. In the surgical orthodontic treatment, anchor screws were used to support the vertical occlusal stop lost due to the missing teeth. After the presurgical orthodontic treatment, sagittal split ramus osteotomy was performed. Finally, partial dentures for the upper and lower jaws were fabricated for the final prosthesis. Case 2: A 62-year-old female patient with the chief complaint of masticatory dysfunction by anterior cross bite was referred to our hospital. A diagnosis of mandibular prognathism was made and surgical orthodontic treatment was initiated. The periodontal disease was mild, but multiple teeth were missing. To shorten the treatment period, presurgical orthodontic treatment was minimized and prosthetic treatment was also applied. In the surgical orthodontic treatment, anchor screws were also used in this case to restore the vertical occlusal stop lost due to the missing teeth. After the presurgical orthodontic treatment, sagittal split ramus osteotomy was performed. Finally, partial dentures on the left side for the upper and lower jaws were fitted for the final prosthesis.
The aim of the study is to determine patients’ knowledge and attitudes
toward dental implants as a therapeutic option after tooth extraction and to
examine the sources of information about dental ...implants and determine the most
common barriers in deciding for this type of therapy. The cross-sectional study
included 130 patients. An anonymous survey questionnaire was used to conduct
the research. The survey questionnaire consists of a total of 17
multiple-choice questions. Respondents showed good knowledge of dental implants
except for knowledge of dental implant duration where subjects mostly stated
that a dental implant lasts a lifetime. For most respondents, the dentist is
the main source of information related to dental implants. The cost of the
procedure for most respondents is a major barrier in decision to install a
dental implant, but most of them want to know more about dental implants.
Statistically significant differences were observed in patients ‘knowledge in
relation to age and level of education and patients’ attitudes in relation to
gender, age, and level of education.
Cilj istraživanja je
ispitati znanje i stavove pacijenata o dentalnim implantatima kao terapijskoj
mogućnosti nakon ekstrakcije zuba te ispitati izvore informiranja pacijenta o
dentalnim implantatima i utvrditi koje su najčešće barijere u donošenju odluke
za takvu vrstu terapije. U presječno istraživanje je bilo uključeno 130
pacijenata. Radi provedbe istraživanja korišten je anonimni anketni upitnik.
Anketni upitnik sastoji se od ukupno 17 pitanja s višestrukim odgovorima. Ispitanici
su pokazali dobro znanje o dentalnim implantatima s iznimkom znanja o trajanju
dentalnog implantata gdje su ispitanici većinom navodili kako dentalni
implantat traje doživotno. Najvećem broju ispitanika, stomatolog je glavni
izvor informacija vezanih za dentalne implantate. Troškovi postupka većini
ispitanika predstavljaju glavnu barijeru pri odluci o ugradnji dentalnog
implantata, ali ih većina želi znati više o dentalnim implantatima. Statistički
značajne razlike uočene su kod znanja pacijenata u odnosu na dob i stupanj
obrazovanja te kod stavova pacijenata u odnosu na spol, dob i stupanj
obrazovanja.
Global Burden of Severe Tooth Loss Kassebaum, N.J.; Bernabé, E.; Dahiya, M. ...
Journal of Dental Research,
07/2014, Letnik:
93, Številka:
7_suppl
Book Review, Journal Article
Recenzirano
Odprti dostop
The goal of the Global Burden of Disease 2010 Study has been to systematically produce comparable estimates of the burden of 291 diseases and injuries and their associated 1,160 sequelae from 1990 to ...2010. We aimed to report here internally consistent prevalence and incidence estimates of severe tooth loss for all countries, 20 age groups, and both sexes for 1990 and 2010. The systematic search of the literature yielded 5,618 unique citations. After titles and abstracts were screened, 5,285 citations were excluded as clearly not relevant to this systematic review, leaving 333 for full-text review; 265 publications were further excluded following the validity assessment. A total of 68 studies—including 285,746 individuals aged 12 yr or older in 26 countries—were included in the meta-analysis using modeling resources of the Global Burden of Disease 2010 Study. Between 1990 and 2010, the global age-standardized prevalence of edentate people decreased from 4.4% (95% uncertainty interval: 4.1%, 4.8%) to 2.4% (95% UI: 2.2%, 2.7%), and incidence rate decreased from 374 cases per 100,000 person-years (95% UI: 347, 406) to 205 cases (95% UI: 187, 226). No differences were found by sex in 2010. Prevalence increased gradually with age, showing a steep increase around the seventh decade of life that was associated with a peak in incidence at 65 years. Geographic differences in prevalence, incidence, and rate of improvement from 1990 to 2010 were stark. Our review of available quality literature on the epidemiology of tooth loss shows a significant decline in the prevalence and incidence of severe tooth loss between 1990 and 2010 at the global, regional, and country levels.
Introduction: The comprehensive treatment approach and outcomes of a patient with cleft lip and palate was presented in this casereport.
Case presentation: A 31-year-old man with unilateral cleft lip ...and palate(UCLP) had a chief complaint of his mandibular prognathism andasymmetric smile. His clinical and radiographic evaluation showed a Class III skeletal relationship, multiple missing teeth, mandibularanterior occlusal canting, 6 mm of negative overjet and 16 mm overbite. "Surgery first orthognathic approach" was planned including,short-term orthodontic treatment, maxillary advancement and segmental mandibular subapical osteotomy.
Conclusion: At the end of the treatment, a functional occlusion, a harmonious profile, and patient satisfaction were achieved.
Since April 2012, when the Japanese National Health Insurance began covering orthodontic treatment for oligodontia, interest in this treatment has increased among general dentists, guardians, and the ...patients themselves. Developmental problems not only affect jawbone growth in the present, but also affect future establishment of stable occlusion, midline alignment, and management of space for prostheses. We examined 31 patients with oligodontia (12 boys and 19 girls) who were between 7 y 1 m and 14 y 9 m of age at the initial examination (dental age IIIA‐IVA) to identify characteristic features in the patterns of missing teeth and craniofacial morphology. The maxillofacial morphology of patients with oligodontia during development suggested reductions in the mandibular plane angle and lower anterior facial height. We found that the maxillary anterior teeth and maxillary first molars were in a low vertical position, which conceivably affects overlap of the anterior teeth. (J Osaka Dent Univ 2021; 55: 263‐269)
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