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open access
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ISSN : 0376-4672
The aim of this study was to analyze the association between sella turcica bridging (STB) and palatally impacted canine and to investigate the correlation between the angular measurements of palatally impacted canine and STB using cone beam computed tomography (CBCT). The impaction group included 36 subjects (16.97 ± 6.00 years) who had at least one palatally impacted canine and the control group consisted of 36 subjects (16.89 ± 3.52 years) who had normally erupted canines without any dental anomalies. Sella turcica and dental measurements were obtained from reconstructed CBCT images using OnDemand3D 1.0software. Sella turcica dimensions were compared between two groups, and the STB ratio, the proportion of interclinoid distance to diameter of sella turcica, were compared between the impacted and non-impacted sides. Correlation coefficients were calculated between the angular measurements of palatally impacted canine and STB ratio. In the impaction group, interclinoid distance and STB ratio were significantly smaller than those of the control group (p < 0.001). The distribution of STB type II, partial calcification of intercliniod ligaments, was significantly higher in the impaction group than in the control group (p < 0.05). However, there was no significant difference of STB between the impacted and non-impacted sides (p > 0.05) in the unilateral impaction group. Further, STB ratio was negatively correlated with the mesiodistal angulation and the buccolingual inclination of the palatally impacted canine (p < 0.05). The STB was more frequently found in patients with palatally impacted canine, and the degree of STB was significantly associated with the angular measurements of impacted canine.
A narrow band of attached gingiva or mucosa and shallow buccal vestibule interfere with proper tooth brushing leading to plaque accumulation and consequently marginal gingival inflammation and gingival recession. The aim of this paper was to evaluate the effect of simplified periosteal fenestration (sPF) on a patient with minimal amount of attached tissue and shallow vestibule around natural teeth or dental implants. The sPF technique was performed by upgrading the modified periosteal fenestration (mPF) technique which we first suggested. Initially, the partial-thickness apically positioned flap was elevated. After horizontal periosteal fenestration incision was done, a full-thickness flap in the apical direction was elevated to create an osseous exposure. And then, periosteal suture was performed using simple interrupted suture method. Finally, a linear island of denuded bone was automatically produced. In all three cases, a sufficient band of attached tissue and deepened buccal vestibule were gained and maintained during the follow-up period ranging from 12 to 16 months. Thus, the sPF technique might be a promising treatment option for vestibuloplasty around natural teeth or dental implants, such as the mPF technique
Herpes zoster virus (HZV) infection is reactivation of Varicella Zoster virus that entered into the dorsal root ganglia during prior chicken pox infection, then remained in a latent form. HZV is characterized by its typical unilateral vesicles and rash along with a dermatome involvement. In its early stage, the only symptom may be prodromal odontalgia. Therefore, the difficulty in its diagnosis may lead to delayed HZV treatment as well as unnecessary dental procedures. A case of HZV infection of the trigeminal nerve branch is presented here, which was not properly diagnosed at the initial examination, but later confirmed as HZV infection with meningitis.
소수의 임플란트를 전략적인 위치에 식립하여 제작한 임플란트 보조 국소의치를 이용하여 보다 유지력이 좋고 안정적인 국소의치를 제작할 수 있다. 특히 2 개의 임플란트에 대한 보험급여가 가능해지면서 소수의 임플란트를 매식해 국소의치를 위한 지대치로 이용하는 증례는 점차 증가되고 있으며 환자의 저작 기능 향상과 만족도 증진에 일조하고 있다. 본 증례는 편측에 2 개의 전치만 남은 부분 무치악 환자로 상악의 케네디 분류 I 급 국소의치로 수복한 결과 하악 전치부의 마모와 교합수직고경의 감소로 잦은 인공치와 국소의치의 파절이 나타났다. 최소한의 임플란트 지지 고정성보철물을 지대치로 사용하는 임플란트 보조 국소의치를 제작하여 기능적으로 만족할만한 결과를 얻었기에 이를 보고하고자 한다.
Implant-assisted removable partial dentures (IARPD) provide additional retention and stability by placing a small number of implants in the strategic positions. Since the two implants can be covered by National Health Insurance Services, the treatment modality using IARPD has been increased to restore partially edentulous patients with a few unilateral remaining teeth and improved the clinical effectiveness and patient satisfaction. The patient with two anterior unilateral remaining teeth showed a problem of frequent fracture of artificial teeth and denture base with maxillary Kennedy Class I RPD due to wear of mandibular anterior teeth and loss of occlusal vertical dimension. This case report suggested that the incorporation of a limited number of implants into IARPD could improve the function and patient satisfaction for the partially edentulous patients.
Although there were two oral health status surveys of the disabled in Korea, not enough subjects were surveyed for each type of disability in their 40s or older. The purpose of this study is to identify oral health status by disability type in 40s or older using NHIS-HEALS (National Health Insurance Service-National Health Screening Cohort) data. The definition of periodontitis was defined as a patient in cases where periodontal surgery was required in the Health Examination (HEALS) DB, or where subjects who received subgingival curettage, tooth extraction due to periodontitis, or severe periodontal treatment, such as periodontal flap operation with subgingival curettage, bone graft for alveolar bone defects, or guided tissue regeneration, were classified into the severe CP group. The number of toothbrushes per day was investigated by HEALS. The qualification DB excluded deaths from 2002 to 2005, and investigated age, gender, income quintile, disability severity classification and disability type classification. Dental area disability rating was defined based on disability severity and disability type classification. As a result of this study, the following conclusions were obtained. The prevalence rate of chronic periodontitis was 42.5% for non-disabled persons, 48.8% for mild disabled cases in dental areas, and 47.6% for severely disabled. Men with disabilities, like non-disabled people, had a higher prevalence rate than women. Non-disabled people had a higher percentage of those who had less than a toothbrush twice a day than those with disabilities. For a more accurate investigation in the future, a sampling study is required considering the disability type, age, gender, and region of the disabled.
The purpose of this study is to look into the health insurance system of other countries and apply in Korea in order to effectively deliver dental health care services to special care needs patients. The countries being reviewed are followings: New York in the United States, Ontario in Canada, Japan, the United Kingdom, and Germany. Most of the countries studied allow dentist visit to facility and patient residence who has difficulty visiting dental office. In New York, protective immobilization is covered by medicaid insurance. In Japan, preventive dental care and behavior management are covered by national health insurance. Adopting and applying effective dental care systems can encourage local dentists treating more special needs patient in their offices.
Dental treatment for the disabled requires special consideration. Due to poor cooperation of the patient during dental procedures, behavioral management or general anesthesia is often necessary. We also need to consider the patient’s oral habits and ability to maintain oral hygiene. Since dental treatment may be difficult for the disabled, prevent is more important than treatment itself. In addition, secondary dental caries and periodontal disease after treatment are likely to occur when proper oral care is not sustained. Because the patient is difficult to maintain optimal oral hygiene by themselves, it is essential to educate the guardian about the importance of oral hygiene, as well as encourage them to participate in the patient’s daily oral care. Finally, it is necessary to regularly check the patient’s oral hygiene status and perform professional plaque control through frequent dental visit.