• Maxillofacial Plastic and Reconstructive Surgery
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• 제22권3호
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• pp.301-309
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• 2000

This clinical study was made of 214 cases of the jaw cysts which were diagnosed histopathologically in the Department of Oral and Maxillofacial Surgery, Wonkwang University Dental Hospital from Jan. 1, 1991 to Dec. 31, 1998. Medical records, radiographs, histopathological reports of 214 cases with jaw cysts were retrospectively reviewed. The results were as follows : 1. Among the total patient of 214 cases, male were 143 cases, and female are 71 cases, male predominated by the ratio of 2.04. 2. The periapical cysts and the dentigerous cyst are the most common cyst, irrespective of 116 cases(54.2%) and 58 cases(27.1%). 3. The periapical cyst has no gender prediction, male were 70 cases and female were 54 cases, the mean ages were 39.3 years(SD=18.4). The most common involving teeth were maxillary anterior teeth(59.7%). 4. The dentigerous cyst predominantly occurred in third decade (18 cases : 31%), and the mean ages were 31.9 years(SD=14.8). Dentigerous cysts predominantly occurred in male by the ratio of 7.29 (male : 51 cases, female : 7 cases). Maxillary anterior teeth(43.1%) and mandibular molars(32.8%) were most frequently involved. 5. The odontogenic keratocyst predominantly occurred in second and third decade and mean ages were 23.5 years(SD=17.2). The mandibular molars(60%) were most frequently involved. 6. All nasopalatine cyst occurred after fourth decade, mean ages were 49.5years(SD=10.4). In the gender incidence of nasopalatine cyst, 1 case occurred in female and 10 cases occurred in male. 7. In the surgical intervention of jaw cyst, cyst enucleation and marsupialization performed in 156 cases. Cyst enucleation with bone graft performed in 58 cases and iliac autogenous bone grafts most frequently performed in 29cases. 8. The diameter range of cyst enucleation with bone graft were from 15mm to 120mm with a cyst diameter of 33.3mm. (SD=15.2) The diameter range of cyst enucleation and marsupialization were from 7mm to 82mm with a cyst diameter of 20.4mm.(SD=9.0) The diameter of cyst enucleation with bone graft were significantly greater than diameter of cyst enucleation. (p<0.05) 9. Post-operative complications occurred in 9 cases(15.5%) in which cyst enucleation with bone grafts performed and occurred in 31 cases(19.9%) in which cyst enucleation.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제31권2호
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• pp.150-160
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• 2005

Background: For normalization of displaced anatomical structure by large cyst, two-step procedure (decompression and enucleation afterward) has been recommended. However, the histological transformation after cystotomy for decompression was shown frequently in secondary enucleation. Therefore, analyses about effects and histological changes after decompression have been necessary. Methods: 48 cases diagnosed as large odontogenic cyst in the jaw and treated by decompression and secondary enucleation were retrospectively analyzed in clinical, rediographical, and histological aspects. Results: In dentigerous cyst, decompression was much useful. Impacted permanent teeth were erupted and reduction rate was higher than that of odontogenic keratocyst (OKC) and apical periodontal cyst. In OKC, among the 29 cases, 11 cases showed no-keratosis, proliferation and rete-ridge elongation after decompression. 4 cases showed no-keratosis, only. 7 cases showed orthokeratosis and rete-ridge elongation and 6 cases showed reteridge elongation, only. 1 case had no change. And the recurrence rate for OKCs was 10.3%. For all odontogenic cysts in this study, dysplasia was not found in cystic lining after decompression. Conclusions: This study implied that decompression for large odontogenic cyst was useful treatment modality because it was conservative treatment and recurrence rate was low although long treatment period was required.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제14권1_2호
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• pp.160-168
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• 1992

저자는 31세 여자환자의 좌측하악부에서 매복된 제3대구치 주위의 함치성 낭종에서 기원한 Group 3a type의 다방성의 낭종성 법랑아세포종을 경험하여 병소에 포함된 치아 발거슬 및 enucleation/curettage로 현재까지 재발없이 치유되었기에 병리조직학적 소견을 중심으로 문헌고찰과 함께 보고하는 바이다.

• 대한소아치과학회지
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• 제36권3호
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• pp.481-488
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• 2009

1904년 Buckley에 의해 치근관 살균제로 도입된 이후로 1:5로 희석된 formocresol을 사용한 치수절단술이 치아우식에 의한 유치의 비가역적 치수염시에 가장 많이 사용되어 왔다. Formocresol은 치수조직의 높은 고정능력으로 높은 임상적 성공률을 보이고 있으나 자체독성이 매우 강하여 영구 계승치 치배의 변위나 결손, 법랑질 형성 부전, 전신흡수로 인한 돌연변이 가능성과 암유발 가능성 역시 보고되고 있다. 또한 formocresol을 사용한 치수절단술 후에 과사용된 formocresol에 의한 만성적인 염증이 계승 영구치로 확산되어 퇴축법랑상피의 증식을 자극하고 법랑질로부터 퇴축법랑상피를 분리시켜 함치성 낭종을 형성할 수 있음이 보고되고 있다. 본 증례는 3년 전 응급으로 하악 좌측 제 2유구치의 formocresol을 사용한 치수절단술 후 정기 검진을 위해 내원한 환자의 방사선 사진에서 함치성 낭종이 발견되어 낭종 제거와 함께 유치의 발치를 시행했고 발치된 유치에서 formocresol cotton pellet이 제거되지 않은 채로 발견되어 formocresol이 장기간 남아있음으로 인해 낭종을 형성할 수 있음을 보고하는 바이다.

• 대한소아치과학회지
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• 제26권4호
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• pp.669-676
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• 1999

함치성 낭종은 법랑질 형성이 완료된 후 법랑상피층 사이나 치관과 이 상피 사이에 액체가 축적되어 발생한다. 10대와 20대에서 호발하며 6-7세는 9.1%를 차지한다. 또한 상하악 어느 곳에서나 발생될 수 있으나, 하악 제 3 대구치에서 가장 많이 발생되며, 상악 견치, 하악 제 2 소구치, 상악 제 3 대구치 순으로 발생된다. 모든 악골 낭종 중 16.6%를 차지하고 있으며, 남자가 여자에 비해 약간 높은 발생 빈도를 나타낸다. 함치성 낭종의 치료로는 조대술과 적출술이 있는데 치아의 맹출력이 왕성한 연령이며 변위된 치아의 보존이 요구될 때는 조대술이 추천되고 있다. 본 증례는 함치성 낭종에 이환되어 조선대학교 소아치과에 내원한 환아에서 obturator를 이용한 조대술을 시행하여 이환된 치아를 정상 위치로 맹출 유도하고 다음과 같은 결과를 얻었다. 1. Obturator를 이용한 조대술만으로 함치성 낭종에 이환되어 심하게 변위되었던 영구치는 특별한 교정적 처치없이 대부분정상 위치로 맹출하였다. 2. 법랑질 저형성과 치근 형태 이상이 일부 증례에서 관찰되었다. 3. 골 팽창 부위와 결손 부위는 특별한 감염이나 재발 없이 치유되었다.

• 대한치과의사협회지
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• 제15권1호
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• pp.27-31
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• 1977

Dentigerous cysts are closed epithelium-lined sacs formed about the crowns of unerupted teeth. Most of them probably are the result of degenerative changes in the reduced enamel epithelium. The authors observed 1 3 year old girl with a swelling and buccal bony expansion of the left mandible. Roentgen examination showed a cystic area in the left side of mandible. Under general anesthesia by means of nasotracheal intubation, intraorally, the operation by enucleation consisted in surgical removal of dentigerous cyst and the left unerupted Ist molar of mandible. The cavity was partially sutured and packed with iodoform gauze. Healing was uneventful.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제42권2호
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• pp.123-126
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• 2016

Dentigerous cysts are common odontogenic cysts that are associated with the crown of the tooth and typically develop from single lesions. Bilateral and multiple dentigerous cysts are very rare and occur in patients with syndromic conditions. This paper presents a case report of a 15-year-old male patient that experienced non-syndromic bilateral dentigerous cysts that simultaneously occurred in all four dental quadrants around the unerupted third molars. Clinicians should confirm the extent of cystic lesions using a panoramic view and computed tomography, and should keep the possibility of bilateral dentigerous cysts in mind as a potential diagnosis, even in a non-syndromic patient.

• Imaging Science in Dentistry
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• 제43권4호
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• pp.295-301
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• 2013

The author experienced 8 cases of pericoronal radiolucency involving an incomplete tooth crown that had not developed to form the cemento-enamel junction, and the underdeveloped crown sometimes appeared to be floating within the radiolucency radiographically. The first impression was that these cystic lesions had odontogenic keratocysts, but half of them turned out to be dentigerous cysts histopathologically. There has been no report concerning odontogenic cysts involving an incompletely developed crown. The purpose of this paper is to report that dentigerous cysts may develop before the completion of the cemento-enamel junction of a developing crown.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제21권2호
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• pp.166-173
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• 1999

A clinical study of selected patients with cyst which were managed in the Department of oral and maxillofacial sugery from March 1994 to February 1998 was done. An following results were obtained 1. Male were involved more than females by cyst in a ratio of 1.95:1 and most of the cases occurred in the secondary decades 2. The primary site of radicular cysts were the anterior incisor area, dentigerous cysts were anterior incisor area and canine area, incisive canal cysts were maxillary anterior area, odontogenic keratocyst were the mandibular ramus area. 3. The common symptoms were swelling(65 cases), pain(12 cases) and the mean duration of syptomatic period was 10 days. 4. The rates of histopathologic classification were radicular cyst(58%), dentigerous cyst(22%), incisive canal cyst(9%), odontogenic keratocyst(11%). 5. Average of Alk. phosphatase was 235(IU/L) at pre-twenty age and 102(IU/L) at post-twenty age. 6. In treatment modalities, enucleation was most common, odontogenic keratocyst was treated by enucleation and curettage for prevention of recurrence.

• Imaging Science in Dentistry
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• 제51권3호
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• pp.291-297
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• 2021

Purpose: This study was performed to evaluate the prevalence, distribution, and radiological features (as per the Shear classification) of dentigerous cysts in a Lebanese sample. Materials and Methods: It was an epidemiological, cross-sectional, 5-year retrospective study of 137 dentigerous cysts treated at Lebanese Army Dental Departments. The collected data comprised demographic and radiological information corresponding to patients from July 2015 to July 2020. Syndromic cases were excluded. Demographic data and the radiological features of cases were studied and analyzed. Results: Dentigerous cysts were treated in 109 patients (58.7% males and 41.3% females; mean age: 28.3±16.3 years) out of 6,013 patients(52% males and 48% females), with a prevalence of 1.8%. Dentigerous cysts were more commonly found in patients in their second and third decades of life than in older age groups. Of the 109 patients, 22.9% had multiple dentigerous cysts. Of the 137 cysts, 71.5% were mandibular. The most prevalent anatomical location was the posterior mandible, followed by the posterior maxilla. The most commonly involved tooth was the mandibular third molar. Regarding radiological types, the central type was the most common (60.6%), followed by the lateral type (29.2%), and the circumferential type (10.2%). Conclusion: The results of this study were similar to studies of other populations in terms of distribution and features. Multiple non-syndromic dentigerous cysts were more common than reported in other studies, which warrants further clinical studies to reveal previously undetected factors.