• Journal of Oral Medicine and Pain
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• 제46권4호
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• pp.150-154
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• 2021

Deep neck infection (DNI) is a potentially serious pathology that can lead to serious complications and high rate of mortality. Since DNI affects the cervical spaces, which can compromise airway, aggressive antibiotic administration and prompt surgical drainage are essential for recovery. Although most causes of DNI are known to be dental infections, developmental cysts such as dentigerous cysts are relatively few causes. In this case, we report a rare patient with severe deep neck space infection caused by infected third molar with dentigerous cyst.

• 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.

• 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.

• 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.

• 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.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제48권6호
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• pp.342-347
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• 2022

Objectives: The purpose of this study is to investigate the characteristics of dentigerous and radicular cysts that occur between deciduous and succeeding permanent teeth and to propose considerations for differential diagnosis of cysts at the treatment planning stage in the outpatient clinic. Materials and Methods: A total of 87 patients with a cystic lesion located between a deciduous tooth and the succeeding permanent tooth participated in the study. Twelve variables were analyzed to diagnose such a cyst. For data analysis, Fisher's exact test was used to determine the statistical significance of the variables. Results: Of the total 87 patients who participated in this study, 69 were diagnosed with dentigerous cysts and 18 were diagnosed with radicular cysts. Seven of the 12 differential factors analyzed in this study were statistically significant: age, location, symptoms, dental caries, endodontic treatment, delayed eruption, and size. Conclusion: Several criteria can be considered for diagnosis of dentigerous cysts or radicular cysts. Age, location, presence of symptoms and dental caries, previous endodontic treatment, cystic size, and delayed eruption of impacted permanent teeth are reliable factors that should be considered when diagnosing dentigerous and radicular cysts.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제37권3호
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• pp.161-168
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• 2011

Purpose: The odontogenic keratocysts demonstrated a high recurrence rate and a biologically aggressive nature. This might be due to unknown factors inherent in the epithelium or enzymatic activity in the fibrous wall. Bcl-2 protein is characterized by its ability to inhibit apoptosis. The aim of this study was to evaluate the expression and distribution of bcl-2 in the OKCs, its possible relationship with the tumorous characteristics, such as the aggressive nature and high recurrence rate, and its usefulness to differentiate OKCs from dentigerous cysts. Materials and Methods: Formalin fixed paraffin-embedded tissue sections of 53 OKCs, and 44 dentigerous cyst were immunohistochemically analyzed quantitatively for the immunoreactivity of the bcl-2 protein with i-solution. Results: More Bcl-2 expression was observed in the OKCs (mean34.387%) than dentigerous cyst (mean11.144%) with statistical significance (P<0.001). Seventeen and 15 of the 32 OKCs in this study showed positivity in the basal layer and basal/suprabasal layers, respectively. In dentigerous cyst, 2 of 3 showed positivity in the basal cell layer. Conclusion: Considering that bcl-2 over expression may lead to the increased survival of epithelial cells, this study demonstrated a possible relationship between the aggressive nature of OKC and the intrinsic growth potential of its lining epithelium. Furthermore, the basal/suprabasal distribution of bcl-2 positive cells was observed in some OKCs, which might have a significant impact on the behavior of cysts. The bcl-2 expression of OKCs can be useful for differentiating OKCs from dentigerous cysts.

• 대한소아치과학회지
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• 제29권2호
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• pp.196-203
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• 2002

함치성 낭종은 흔한 발육성 낭종이지만 양측성 함치성 낭종은 극히 드물다. 양측성 또는 다발성 함치성 낭종은 일반적으로 다양한 syndrome과 연관된다. 본 증례는 특별한 전신질환이나 syndrome이 없이 5세 3개월에 하악 우측 제 1소구치에서, 이후 7세 6개월에 하악 좌측 제 1소구치에서 함치성 낭종이 발생하였으며, 조대술을 시행한 후, 환아의 임상적, 방사선학적 관찰 및 치료에서 다음과 같은 지견을 얻었기에 보고하는 바이다. 1. 낭종의 크기가 큰 경우의 치료 방법으로 적출술보다 조대술이 선택될 수 있다. 2. 조대술은 치아의 맹출력이 있는 연령에 발생된 함치성 낭종에서 dentoalveolar structure를 가능한 보존하고, 낭종에 이환된 치아의 맹출을 기대하는 목적으로 이용된다. 3. 양측성 또는 다발성 함치성 낭종은 다양한 syndrome과 함께 발견되는 것이 일반적이나, 본 증례는 syndrome과의 연관성 없이 하악 우측과 좌측 소구치부에서 함치성 낭종이 발생되었으며, 향후 또 발생할 가능성에 대하여 환자 및 보호자에게 사전에 알리는 것이 필요하다고 생각된다.

• 대한소아치과학회지
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• 제30권3호
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• pp.459-464
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• 2003

함치성 낭종이란 퇴축법랑상피와 법랑질 표면 사이에 체액이 축적되어 치관이 내강의 안쪽에 있으며 치근은 바깥쪽에 위치하는 매복치 치관을 둘러싸는 치원성 낭을 의미한다. 함치성 낭종의 치료법으로는 적출술, 조대술, 감압술 및 외과적 절제술이 있다. 본 증례는 하악 제2유구치의 만기잔존을 주소로 내원한 환아들을 검사하였다. 두 환아에서 해당 제2유구치의 협측부에서 팽융을 관찰하였다. 두 환아, 모두 방사선사진상 하악 제2소구치의 치관을 포함한 단방성의 방사선투과상이 보였으며 조직검사 결과 함치성 낭종으로 진단되었다. 본 증례에서 발치와를 통한 조대술을 시술하였다. 제2유구치를 발거하고 바세린 거즈로 발치와를 보호한 후 익일에 보격장치를 겸한 obturator를 장착해 주었다. 시술 후 매복된 영구치는 정상 맹출속도보다 빠르게 맹출하는 양상을 보이고 있다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제29권2호
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• pp.135-139
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• 2003

저자 등은 본과에 내원하여 함치성 낭종으로 진단된 5명의 소아 환자에서 보존적인 조대술을 이용하여 매복된 영구치를 발거하지 않고 이차 치유를 유도하였다. 술 후 병소는 신생골로 치유되었으며 매복 영구치도 정상적인 위치로 맹출하였다. 이와 같이 소아에서 함치성 낭종의 경우 주기적인 예후 관찰이 가능하다면 보다 보존적인 조대술 등을 이용시에는 영구치의 정상적인 유도와 낭종의 치유를 유도할 수 있으리라 사료된다. 또한 인접치아의 경사 등에 의한 정상적인 치아의 맹출이 어려운 경우에는 교정치료와 병행시에 정상적인 영구 치열을 확보할 수 있을 것으로 사료되어 문헌고찰과 함께 보고하는 바이다.