• Title/Summary/Keyword: 구치부

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Oral rehabilitation of a patient with collapsed occlusal plane resulting from loss of posterior teeth (구치부 상실로 인해 교합 평면이 기울어진 환자에서 임플란트를 이용한 구강 회복 증례)

  • Jinwoo Han;Jae-Seung Chang;Se-Wook Pyo;Sunjai Kim
    • The Journal of Korean Academy of Prosthodontics
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    • v.62 no.2
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    • pp.165-173
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    • 2024
  • Restoring lost teeth is very important in terms of both function and aesthetics. If tooth loss occurs in the posterior region and the loss of support is persistent, it may cause a gradual shift in the position of the mandible and a change in occlusion. This clinical case attempted to restore support for the posterior teeth with a fixed prosthesis using implants in a patient whose opposing teeth were erupted and the occlusal plane collapsed due to long-term loss of the maxillary left posterior teeth and mandibular right first molars. To correct the occlusal plane of remaining dentition, wax-up of maxillary left posterior teeth was duplicated with acrylic resin and placed on maxilla. Surgical template for implant placement were fabricated using digital technology. After the support of the posterior teeth was restored with the placement of the implant, stable occlusion with temporary restorations was observed for a sufficient time. Afterwards, monolithic zirconia prosthesis was placed on the patient to ensure functional and aesthetic improvement.

A case of full mouth rehabilitation with vertical dimension gaining in patient with severely worn dentition and loss of vertical dimension due to loss of posterior support (구치부 지지의 상실로 인해 과도한 치아 마모와 수직 고경 상실을 보이는 환자에서 수직 고경 거상을 동반한 전악 수복 증례)

  • Jung, Ji-Ah;Bang, Joo-Hyuk;Lee, Yong-Sang;Kim, Sung-Yong
    • The Journal of Korean Academy of Prosthodontics
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    • v.58 no.2
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    • pp.153-160
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    • 2020
  • Gradual tooth wear is a natural process of aging, but pathological wear over physiologic ranges leads to functional and esthetic problems. The loss of posterior support may cause pathological wear of anterior teeth, which results in reduction of vertical dimension and disharmony of occlusal plane. To solve this problem, determination of proper vertical dimension considering centric relation is necessary. This case report presented 71-year-old male, who had the severe wear of lower anterior teeth due to loss of posterior support. By meticulous evaluation, a full mouth rehabilitation with elevation of vertical dimension was planned. After 8 months of follow-up, stable occlusal scheme is maintained and patient was satisfied with clinical outcome functionally and esthetically.

A case of oral rehabilitation with increasing vertical dimension for a patient with loss of posterior teeth support (구치부 지지 상실을 보이는 환자에서 수직고경 거상을 동반한 구강 회복 증례)

  • Kim, Hyun-Hwi;Lee, Jong-Hyuk;Ha, Seung-Ryong;Choi, Yu-Sung
    • The Journal of Korean Academy of Prosthodontics
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    • v.60 no.4
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    • pp.404-411
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    • 2022
  • The patient in this case was an 80-year-old female who had lost #16, 13, 26, 37, 36, 35, 44, 45, 46, 47 teeth. The patient showed loss of posterior support, loss of vertical dimension of occlusion, and deep anterior overbite. Her chief complaint was esthetic and functional discomfort. She wanted to restore normal facial aesthetic shape and masticatory function through prosthetic treatment. Clinical evaluation, radiographic examinations, and facial and oral analysis were performed. Interocclusal rest space was excessive than the average. Distance between labial vestibules and zenith of central incisors, and lower facial ratio were below the average. Taken together, occlusal rehabilitation was determined through increasing 4 mm of vertical dimension on premolars. In this case, a patient who lacked restoration space with deep bite in the anterior region due to loss of the posterior teeth support restored a stable occlusal relationship and harmonious anterior and lateral guidance through fixed and removable prosthesis with increased vertical dimension.

The relationship between posterior dental compensation and skeletal discrepancy in class III malocclusion (골격성 III급 부정교합자의 악골 부조화가 구치부 치성보상에 미치는 영향)

  • Sung, Ji-Hyun;Son, Woo-Sung;Kim, Sung-Sik
    • The korean journal of orthodontics
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    • v.33 no.1 s.96
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    • pp.41-49
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    • 2003
  • This study examined the relations between degree of posterior dental compensation and skeletal discrepancy in Class III malocclusion. The pretreatment lateral cephalogras and dental casts of 87 skeletal Class III adults were selected to provide a random sampling of skeletal Class III malocclusion. Skeletal discrepancy was described with ANB angle, Wits appraisal, SN-Mn plane angle, FMA and ratios of basal arch width. Degree of posterior dental compensation was described with maxillary intermolar angle, mandibular interolar angle and sum of intermoloar angle. The relationships between skeletal discrepancy and degree of posterior dental compensation were analyzed with simple correlation analysis, stepwise multiple regression analysis. The results were as follows 1. A strong association was found between the variation in the anteroposterior measure, ANB angle and the variation of posterior dental compensation measures, sum of intermolar angle and mandibular intermolar angle in skeletal Class III malocclusion. 2. There was no statistically significant relationship between the variation in the vertical measures and the variation of posterior dental compensation measures in skeletal Class III malocclusion. 3. There was no statistically significant relationship between the variation in the anteroposterior and vortical measures and degree of basal arch width discrepancy.

Non-surgical treatment and retention of open bite in adult patients with orthodontic mini-implants (성인 환자에서 구치부 압하를 통한 개방교합의 치료와 유지)

  • Moon, Cheol-Hyun;Lee, Joo-Sin;Lee, Hyun-Sun;Choi, Jin-Hugh
    • The korean journal of orthodontics
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    • v.39 no.6
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    • pp.402-419
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    • 2009
  • Successful treatment of the non-growing patient with an open bite of either dental skeletal pattern often presents a difficult challenge. The morphologic pattern in anterior open bite is characterized by longer vertical dimensions, an increase in development of the maxillary posterior dento-alveolar structure and a steep mandibular plane. In such cases, molar intrusion would be a good remedy for treatment. This article reports the successful treatment and retention of two anterior open-bite cases. We used orthodontic mini-implants for treatment and a circumferential retainer with posterior bite block or skeletal fixed retainer for retention. The diagnostic criteria and mechanics for appropriate treatment are discussed. Our results suggest that open bite can be reduced successfully with intrusion of molars using orthodontic mini-implants (OMI) without orthognathic surgery, and that circumferential retainer with posterior bite block and skeletal fixed retainer are effective for retention.

A Case Report of Referral Pain on Mandibular Toothache Originated from Myofascial Pain (근막동통으로 인한 하악 구치부 연관통의 임상증례)

  • Kang, Jin-Kyu
    • Journal of Oral Medicine and Pain
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    • v.32 no.4
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    • pp.455-460
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    • 2007
  • Majority of toothache is caused by abnormality of pulpal or periodontal tissues. However, there are numerous nonodontogenic sources that may be responsible for pain felt in the tooth. Nonodontogenic toothache may result from muscle, maxillary sinus, neuropathic, neurovascular, even cardiac and psychogenic problems. Myofascial pain is one of the most common abnormality characterized by palpation of a hard band which acts as the trigger point that causes stiffness and fatigue of the muscle, referral pain in tooth, tension-type headache, and hyperalgesia. Masseter muscle particularly induce referral pain in maxillary and mandibular molars. This case reported the treatment of the pain in right mandibular molar originated from myofascial pain of the right masseter. The pain is improved by general and reversible treatments such as muscle exercise, physical therapy, and medication. Nonodontogenic toothache should undergo proper differential diagnosis in order to avoid unnecessary dental treatments, such as endodontic, periodontic treatment, and tooth extraction, which would fail to alleviate the symptom of the patient.

EARLY TREATMENT OF THE POSTERIOR CROSS-BITE: A CASE REPORT (구치부 반대교합의 조기치료에 대한 치험례)

  • Lee, Eun-Mi;Kang, Dong-Kyun;Kim, Tae-Wan;Kim, Young-Jin;Nam, Sun-Hyun;Kim, Hyun-Jung
    • Journal of the korean academy of Pediatric Dentistry
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    • v.35 no.2
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    • pp.357-366
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    • 2008
  • Posterior cross-bite is a relatively frequent malocclusion in primary and early mixed dentition and the reported prevalence of posterior cross-bite varies from 7% to 23%. It has been defined as a transverse discrepancy in arch relationship which the palatal cusp of the upper posterior teeth do not occlude in the central fossa of the opposing lower teeth, and can be manifested in a single tooth or in a group of teeth. Posterior cross-bite does not often self-correct and therefore immediate treatment is recommended. Occlusal adjustment to eliminate premature contact that causes mandibular deviation, expansion of narrow maxillary arch, arrangement of the individual teeth to treat asymmetry within the dental arch are the methods of treating cross-bite. In the present case, functional posterior cross-bite was observed in the primary and the early mixed dentition children. The children were treated by the slow maxillary expansion and occlusal adjustment. The outcome of periodic examinations after the correction of cross-bite was favorable.

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Crowding with no posterior crossbite treatment by rapid Palatal expansion (구치부 반대교합이 없는 총생 증례의 급속구개확장에 의한 치료)

  • Kook, Yoon-Ah;Akhavan, Mojdah;Zernik, Joseph H.
    • The korean journal of orthodontics
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    • v.31 no.6 s.89
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    • pp.611-618
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    • 2001
  • This is a case report of a 12.5-year-old girl who presented with moderate to severe anterior dental crowding and rotations. Treatment involved no extraction, but expansion of both the maxillary and the mandibular arches. Maxillary expansion was assisted by rapid palatal expansion despite the fact that this patient did not present with posterior crossbite. Crowding and rotations in both arches were corrected and good occlusal function and improved facial esthetic were achieved, with acceptable overbite and overjet. The application of rapid maxillary expansion in cases with no posterior crossbite, which has increased in recent years, calls for re-evaluation of the diagnostic basis and indications for the use of this technique.

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Oral Hygiene Management and Factor Analysis of the Community People (일부지역 주민들의 구강환경관리 및 요인분석)

  • Park, Hyang-Sook;Kim, Jin-Soo;Kim, Jin-Mi;Kim, Yoon-Sin
    • Journal of dental hygiene science
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    • v.10 no.1
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    • pp.11-16
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    • 2010
  • The subjects of this study were patients at scaling practice, the total number of the subjects was 249 of 138 men and 111 women. The results were analyzed using SPSS 12.0. 1. In oral health care, among tooth brushing methods, scrub method was found to be 65.9%(164 patients), and 83.9%(209 patients) did not use oral care aids. 2. Mean calculus index was $0.57{\pm}0.22$. 3. For calculus index per tooth brushing method, there was statistically significant difference in all of the upper jaw, the lower jaw, the anterior portion, and the posterior portion(p < 0.05). 4. For calculus index per frequency of tooth brushing, there was statistically significant difference in the upper jaw, the lower jaw, and the posterior portion(p < 0.05). 5. For calculus index per time of tooth brushing and per use of oral care aids, there was statistically significant difference in all of the upper jaw, the lower jaw, the anterior portion, and the posterior portion(p < 0.05). 6. For factors influencing calculus index, as a result of applying stepwise method based on 0.05 of significance level, age, use of oral care aids, sex, and time of tooth brushing were found to influence calculus index. Final regression model was calculus index = $0.362^*age+0.216^*$use of oral care aids - $0.161*sex-0.127^*$time of tooth brushing, and explanatory power of the model was 23.4%. $0.362^*age+0.216^*$use of oral care aids - $0.161^*sex-0.127^*$time of tooth brushing, and explanatory power of the model was 23.4%.