• 치과방사선
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• 제12권1호
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• pp.27-33
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• 1982

The purpose of this study is to obtain some informations for the differential diagnosis of ameloblastoma from dentigerous cyst by analysis of the radiographic findings of these lesions. The author studied age and sex distribution, the site of the lesion, tooth behavior and several radiographic features of ameloblastoma and dentigerous cyst. The material consisted of 65 patients of ameloblastoma and 37 patients of dentigerous cyst. The results were obtained as followings. 1) The incidence was highest in 2nd decade (29.2%) and total 65 cases consists of 35 males (53.8%) and 30 females (46.2%) in ameloblastoma. 62 cases were found in lower jaw (95.4%) and the highest site of occurence of ameloblastoma was mandibular molar. region 27 cases. (41.5%) 2) In 65 cases of amelobl!!stoma, 18 cases were seen in association with tooth and 15 cases (83.2%) out of those were associated with mandibular molar teeth. Mandibular molar were most frequently involved in dentigerous cyst (11/31 cases, 29.7%). 3) (a) 23 cases (35.3%) of tooth resorption were found in ameloblastoma and 11 cases (29.7%) of tooth resorption were found in dentigerous cyst. (b) 15 cases (23.1%) of tooth migration were found in ameloblastoma and 10 cases (27.0%) of tooth migration were found in dentigerous cyst. 4) Several radiographic features. (a) Monolocular type ameloblastoma were seen in 23 cases (35.4) and multilocular type of ameloblastoma were seen in 42 cases (64.6%). Monolocular type of dentigerous cyst were seen in 33 cases (89.2%) and multilocular type was seen in 4 cases. (b) Monolocular type ameloblastoma showed 20 cases (87.0%) of scalloped border but 32 cases (97.0%) of dentigerous cyst showed smooth border. (c) 34 cases (81.0%) of ameloblastoma showed honey-comb appearance, soap-bubble appearance or mixed appearance. but all 4 cases of dentigerous cyst showed multicystic appearance. (d) 12 cases (52.2%) of monolocular type ameloblastoma showed slightly increased radiopacity in surrounding bone, and 22 cases (66.7%) of monolocular type dentigerous cyst showed sharp osteosclerotic border. 27 cases (64.3%) of multilocular type ameloblastoma and 3 cases (75.0%) of multilocular type dentigerous cyst showed no changes in surrounding bone.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제30권2호
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• pp.178-181
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• 2008

Much has been written about the possibility that the lining of a dentigerous cyst might undergo neoplastic transformation to an ameloblastoma which is defined as mural ameloblastoma. Mural ameloblastomas are estimated to constitute 5% of all ameloblastomas. 85% of the mural ameloblastomas were associated with dentigerous cyst, all of which were observed before the age of 30. The frequency of recurrence after simple enucleation of the cyst containing this lesion is considerably lower than that for ameloblastomas in general that are treated in a similar manner. Therefore, further and more extensive surgery is not required for mural ameloblastoma. We diagnosed a cystic appearance of a 17 year-old female as dentigerous cyst and undergone marsupialization. For 2 years of period, no significant change was observed and therefore enucleation was undergone and diagnosed as ameloblastoma. We report this case with a review of related literatures.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제36권6호
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• pp.553-555
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• 2010

Ameloblastoma is a common odontogenic tumor originating from the dental lamina, reduced dental epithelium and rests of Malassez, and represents 10% of all odontogenic tumors of the jaw. Unicystic ameloblastoma is normally encountered in young patients, and often occurs in the mandible, and is particularly associated with an impacted tooth. We encountered an unicystic ameloblastoma arising from a dentigerous cyst after the treatment of a radiolucent lesion on the mandible.

• 대한치과의사협회지
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• 제9권12호
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• pp.837-840
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• 1971

The Auther have diagnosed the 9 cases Dentigerous Ameloblastoma from mandible in Korean. 1) All 9 cases were Korean patients. 2) Clinical Diagnosis of 9 cases were cyst but microscopical Diagnos's of all cases were Dentigerous Ameloblastoma. 3) Patients of all cases were sedated with 100mg. Demerol and anesthetized with 2% Lidocain hydrochloride. The surgical procedure was performed in the usual manner.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제22권1호
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• pp.15-21
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• 2000

저자는 국소적 재발율에 있어서 큰 차이를 보이는 두 치성종양중 대표적인 함치성 낭종과 법랑아세포종에 있어서 apoptosis 관련 단백(p53, bcl-2, bax)의 발현 양상을 관찰하기 위하여 10례의 함치성 낭종과 16례의 법랑아세포종에 대하여 면역조직화학적 연구를 실시하여 다음과 같은 결론을 얻었다. 1. p53은 함치성 낭종보다 법랑아세포종에서 강하게 발현되었고 법랑아세포종의 조직학적 분류에 따른 p53 발현의 차이를 관찰할 수 없었으며 함치성 낭종의 경우에는 p53이 거의 basal layer에서 발현되었다. 2. Bcl-2는 함치성 낭종의 경우 주로 기저층 혹은 전층에서 발현되었고 법랑아세포종에서는 바깥층 혹은 전층에서 발현되었는데 특히 종양 실질조직중 입방형 또는 주상형 세포층에 집중되어 염색되었다. 3. Bax는 함치성 낭종의 경우 법랑아세포종에 비하여 보다 강하게 발현되었고 함치성 낭종과 법랑아세포종간에 발현양상의 차이는 관찰할 수 없었다. 함치성 낭종 및 법랑아세포종에 있어서 apoptosis 관련단백의 발현양상에 관한 이러한 차이가 법랑아세포종의 독특한 공격적 성장양상과 연관이 있으리라 사료된다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제50권3호
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• pp.153-160
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• 2024

Objectives: This study identifies factors for differential diagnosis among lesions by retrospectively comparing panoramic and cone-beam computed tomography images and analyzing the characteristics of lesions associated with impacted mandibular third molars (IMTs). Materials and Methods: A retrospective cohort study was conducted in patients who simultaneously underwent IMT extraction surgery and related benign tumor resection or cyst enucleation at our institution from 2017 to 2021. To compare the characteristics of each group, two comparative analyses were conducted. The first comparison considered the most frequently observed lesions associated with IMTs: dentigerous cysts, odontogenic keratocysts (OKCs), and ameloblastoma. The second comparison involved placing dentigerous cysts, which have a relatively low recurrence rate, into group A and placing OKC, ameloblastoma, and odontogenic myxoma, which have high recurrence rates, into group B. Results: Significant differences in the size of the lesion were found in the order of ameloblastoma, OKC, and dentigerous cyst (P<0.05). The buccolingual width of ameloblastoma differed significantly from that of the other groups, with no significant difference observed between the OKCs and dentigerous cysts (P=0.083). Conclusion: Patient age and lesion size differed significantly among lesion types associated with IMTs, with younger age and larger lesions for OKCs and odontogenic tumors. OKCs are likely to have a larger mesiodistal width than dentigerous cysts. The buccolingual width of ameloblastomas was larger than those of dentigerous cysts and OKCs.

• 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.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제40권5호
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• pp.225-232
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• 2014

Objectives: The purpose of this retrospective study is to find the differentiating characteristics of cystic and cystic-appearing lesions that involve the impacted mandibular third molar by analyzing panoramic radiographs and computed tomography images, and to aid the preoperative diagnosis. Materials and Methods: Eighty-one patients who had a mandibular cystic or cystic-appearing lesion that involved impacted mandibular third molar and underwent cyst enucleation were included in the study. The preoperative panoramic radiograph and computed tomography findings were analyzed in accordance to the histopathologic type. Results: Most of the cystic lesions containing the mandibular third molar were diagnosed as a dentigerous cyst (77.8%). The occurrence of mesio-distal displacement of the third molar was more frequent in the odontogenic keratocyst (71.4%) and in the ameloblastoma (85.7%) than in the dentigerous cyst (19.1%). Downward displacement was primarily observed in each group. Odontogenic keratocyst and ameloblastoma showed more aggressive growth pattern with higher rate of bony discontinuity and cortical bone expansion than in dentigerous cyst. Conclusion: When evaluating mandibular cystic lesions involving the impacted mandibular third molar, dentigerous cyst should first be suspected. However, when the third molar displacement and cortical bone absorption are observed, then odontogenic keratocyst or ameloblastoma should be considered.

• 대한소아치과학회지
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• 제38권4호
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• pp.407-412
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• 2011

선양 치성 종양(adenomatoid odontogenic tumor)은 악골에 드물게 발생하는 치성 기원의 종양이다. 이전에는 법랑모세포종(ameloblastoma)의 한 종류로 여겨졌으나 양성이며 재발되는 경우는 극히 드물다. 상악 견치에 호발하며 대개는 무증상이지만 크기가 천천히 커져 무통성 종창을 일으킬 수 있다. 방사선학적으로 함치성 낭종(dentigerous cyst) 및 단방성 법랑모세포종(unicystic ameloblastoma)과 매우 유사하다. 일반적으로 보존적인 소파술(curettage) 및 적출술(enucleation)을 통해 치료한다. 본 증례는 하악 우측 측절치 미맹출을 주소로 내원한 10세 여자 환아에서 방사선 사진 검사를 통해 치아의 매복 및 병소를 확인하고 적출술을 시행하였다. 치아에는 브라켓을 부착하여 교정적 정출을 유도하였다. 조직학적 검사를 통해 선양 치성 종양으로 확진되었으며 양호한 치료 결과를 보였기에 보고하는 바이다.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1983년도 제17차 학술대회연제순서 및 초록
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• pp.19.1-19
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• 1983

함치성낭종은 악골내에 발생하는 치계낭종의 일종으로 치아형성후기에 생기는 것으로서 악골내 어느 부위에서나 발생하나 주로 하악골에 번번히 발생한다. 발생연령은 주로 20대와 30대에서 호발하여 남자가 여자보다 약간 높은 발생빈도를 갖는다. 이 낭종은 낭포에 둘러싸여 있기 때문에 여포성낭종이라고도 하는데 흔히 매복되거나 전이된 치아 또는 과잉치에서 발현된다고 한다. 상악동내로 전이된 치아는 특별한 증상없이 지내는 수도 있으나 때로는 만성염증, 범랑아세포종(Ameloblastoma) 또는 펀평상피암 (Squamous cell Carcinoma)으로 된다는 보고도 있다. 따라서 이에 대한 조기진단과 적절한 외과적 처치가 중요하다 하겠다. 치아가 비강 또는 상악동 및 상악골등의 이상위치에서 발생된 예는 1754년 Albinus가 처음 보고한 이래 우리나라에서도 박, 유, 조등에 의한 보고예가 있다. 외과적 처치로는 Enucleation, Marsupialization, Decompression 방법이 있는데 낭종의 발생부위, 크기, 감염여부, 주위조직과의 관계등 여러 가지 임상적 조건에 따라서 가장 적절한 방법을 선택해야 하겠다. 저자는 최근 전북의대 이비인후과에 우측 견치와의 종창 및 을 주소로 내원한 상악골내에 발생한 함치성낭종을 enucleation 방법으로 적출하여 좋은 결과를 보았기에 문헌적 고찰과 함께 보고하는 바이다.