J Investig Clin Dent 2017 Jan 4. Epub 2017 Jan 4.

Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Ontario, Canada.

Aim: The aim of the present study was to profile the expression of human kallikrein (KLK)-related peptidases (KLK) in odontogenic lesions.

Methods: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Read More

J Pharm Bioallied Sci 2016 Oct;8(Suppl 1):S185-S188

Department of OMFS, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India.

Nasopalatine duct cyst is the nonodontogenic developmental cyst, frequently occurring in the midline of the anterior maxillary region. The clinical presentation of the cyst is often varied and presents a diagnostic difficulty and frequently misdiagnosed as developmental or inflammatory odontogenic cystic lesion. This paper represents a large infected nasopalatine duct cyst presenting with complete destruction of anterior palate and pyriform rim. Read More

N Am J Med Sci 2016 Jan;8(1):13-6

Department of Oral Medicine and Diagnostic Sciences, Al-Farabi Colleges, Riyadh, Saudi Arabia.

Background: Dental implantation is considered as one of the most widely employed procedures in dental practice. Nasopalatine duct cyst (NPDC) is one of the most common developmental cysts in the oral cavity that develops from the proliferation of embryological epithelial remnants of nasopalatine duct.

Aim: The aim of this study was to highlight the development of NPDC after the placement of dental implants. Read More

Gen Dent 2016 Jan-Feb;64(1):63-6

Lesions of nonendodontic origin, such as nasopalatine or globulomaxillary cysts, may mimic periapical radiolucencies associated with pulpal pathosis, and incorrect diagnosis may lead to unnecessary endodontic treatment. Horizontal root fractures most commonly affect the maxillary central and lateral incisors. Prognosis depends largely on the level of fracture; fractures in the apical third have the best prognosis, and those in the cervical third have the worst. Read More

Oral Maxillofac Surg Clin North Am 2016 Feb;28(1):31-44

Department of Oral and Maxillofacial Surgery, Harborview Medical Center, School of Dentistry, University of Washington, 4West Clinic, 325 9th Avenue, Seattle, WA 98104, USA. Electronic address:

Nonodontogenic cysts within the jaws are not a common presentation in the pediatric population. Cysts within the pediatric population tend to be developmental and odontogenic in nature. Although nonodontogenic cysts of the jaws are relatively uncommon, it is imperative the clinician understand their clinical behavior and management because failure to do so can result in increased patient morbidity. Read More

J Formos Med Assoc 2015 Nov 29;114(11):1142-4. Epub 2015 Aug 29.

Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei, Taiwan. Electronic address:

Clin Oral Investig 2016 Apr 7;20(3):553-61. Epub 2015 Aug 7.

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.

Objectives: Maxillary incisors (MI) are often affected by dentoalveolar injury resulting in tooth devitalization and apical periodontitis. The aim of the present study was to analyze any association between a history of dentoalveolar injury and the shape and size of the nasopalatine canal (NC) using cone beam computed tomography (CBCT).

Material And Methods: Patients were allocated to the trauma group if they had a history of dentoalveolar injury and a root filling in at least one MI and/or one missing MI. Read More

J Clin Diagn Res 2015 May 1;9(5):ZD21-2. Epub 2015 May 1.

Assistant Professor, Department of Prosthetic Dentistry, Penang International Dental College , Malaysia .

Nasopalatine duct cyst ( NPDC) is described as most common non-odontogenic developmental cyst of the jaws. Despite being common, its clinical and radiographic presentation could be varied and it can sometimes be a diagnostic challenge. This paper presents an unusual case of an infected NPDC associated with an impacted inverted mesiodens and a history of trauma that misled the clinical diagnosis. Read More

Clin Pract 2015 Jan 5;5(1):748. Epub 2015 Feb 5.

Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine , Miyagi, Japan.

Nasopalatine duct cysts are the most common non-odontogenic cysts in the maxilla, and are conventionally treated through a sublabial or palatine approach. Recently, the endoscopic approach has been used, but experience is extremely limited. We treated a 29-year-old male with nasopalatine duct cyst by endoscopic marsupialization, but paresthesia of the incisor region occurred after surgery. Read More

Clin Oral Investig 2015 Sep 13;19(7):1611-8. Epub 2015 Jan 13.

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.

Objectives: The aims of the study were to use cone beam computed tomography (CBCT) images of nasopalatine duct cysts (NPDC) and to calculate the diameter, surface area, and 3D-volume using a custom-made software program. Furthermore, any associations of dimensions of NPDC with age, gender, presence/absence of maxillary incisors/canines (MI/MC), endodontic treatment of MI/MC, presenting symptoms, and postoperative complications were evaluated.

Material And Methods: The study comprised 40 patients with a histopathologically confirmed NPDC. Read More

Braz J Otorhinolaryngol 2014 Sep-Oct;80(5):448-50. Epub 2014 Jul 4.

Odontology Program, Universidade Estadual da Paraíba (UEPB), João Pessoa, PB, Brazil.

J Oral Implantol 2014 Apr;40(2):189-95

British Society of Oral Implantology Southport, Merseyside, UK.

The dental literature reports frequently on both the success and survival of dental implants, whereby the focus remains on the biological response of hard and soft tissue to the implants. The predication and anticipation of adverse implant events can then lead to the preemption of implant loss. However, biological situations can arise that are outside the control of the clinician. Read More

BMJ Case Rep 2014 Mar 18;2014. Epub 2014 Mar 18.

Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences, Manipal, Karnataka, India.

Endodontic diagnosis is challenging and depends on the organisation of information from the patient history, clinical examination and analysis of the pulp, radiographic and histopathological assessment. A 35-year-old man was endodontically treated for radiolucency in relation to the roots of maxillary central incisors as it was a provisionally diagnosed case of radicular cyst. Since the palatal swelling persisted, the lesion was re-evaluated using relevant diagnostic aids and a diagnosis of nasopalatine duct cyst (NPDC) was made, which was missed during the initial assessment. Read More

J Craniofac Surg 2014 ;25(2):e155-6

From the *Department of Otorhinolaryngology, College of Medicine, and †Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea.

Nasopalatine duct cyst is one of the most common cysts among the nonodontogenic cysts in the maxillofacial area. This lesion usually does not show specific symptoms except for pressure from large cysts or infectious symptoms. Surgical removal including the epithelial lining is considered the treatment of choice. Read More

J Maxillofac Oral Surg 2013 Mar 29;12(1):100-4. Epub 2011 Mar 29.

Department of Oral and Maxillofacial Surgery, School of Oral Health Sciences, University of Limpopo, Pietersburg, South Africa.

A case of an unusually large expansile nasopalatine duct cyst (NPDC) causing extensive destruction of the hard palate with involvement of the nasal cavity, perforation of the alveolar process and mucosa of the maxilla by pressure of the maxillary anterior teeth is being presented. Read More

Indian J Otolaryngol Head Neck Surg 2013 Dec 11;65(4):385-8. Epub 2011 Apr 11.

Department of Oral & Maxillofacial Pathology, SVS Institute of Dental Sciences, Mahabubnagar, Hyderabad, Andhra Pradesh India.

The nasopalatine duct cyst is the most common non-odontogenic developmental cysts. Nasopalatine duct cyst also termed as incisive canal cyst, arises from embryologic remnants of nasopalatine duct. Most of these cysts develop in the midline of anterior maxilla near the incisive foramen. Read More

J Craniofac Surg 2014 Jan;25(1):e92-4

From the Departments of *Oral and Maxillofacial Surgery and †OMDR, Bharati Vidyapeeth University Dental College and Hospital, Katraj Pune, India.

Nasopalatine duct cysts (NPDCs) are the most common nonodontogenic cyst of the jaw, with a reported prevalence of between 1% and 11.6% of all jaw cysts.1 It is believed to arise from epithelial remnants of the nasopalatine duct, the communication between the nasal cavity and anterior maxilla in the developing fetus. Read More

J Endod 2014 Jan 5;40(1):16-27. Epub 2013 Nov 5.

João de Barros Barreto University Hospital, Belém, Pará, Brazil. Electronic address:

Introduction: This study aimed to analyze cases referred from a reference service in oral pathology that were initially misdiagnosed as periapical lesions of endodontic origin and to perform a review of the literature regarding lesions located in the apical area of teeth with a nonendodontic source.

Methods: A survey was made of clinical cases derived from the service of oral pathology from 2002 to 2012. The pertinent literature was also reviewed using ScienceDirect and PubMed databases. Read More

Med Oral Patol Oral Cir Bucal 2014 Jul 1;19(4):e308-12. Epub 2014 Jul 1.

Centro de Diagnóstico das Doenças da Boca CDDB, Faculdade de Odontologia, Universidade Federal de Pelotas UFPEL, Rua Gonçalves Chaves, 457, sala 608, Pelotas, RS, Brazil, CEP 96015-560,

Objectives: The purpose of this study was to determine the clinical and demographic characteristics of oral non-odontogenic cysts (ONOC) in a Brazilian population over a 53-year period and to compare this data with the literature.

Study Design: A total of 20.391 biopsies records were evaluated, from April/1959 to August/2012. Read More

Case Rep Dent 2013 4;2013:869516. Epub 2013 Nov 4.

Department of Oral Medicine and Radiology, Terna Dental College, Nerul, Navi Mumbai 400706, India.

The nasopalatine cyst is the most common epithelial and nonodontogenic cyst of the maxilla. The cyst originates from epithelial remnants from the nasopalatine duct. The cells may be activated spontaneously during life or are eventually stimulated by the irritating action of various agents (infection, etc. Read More

J Oral Maxillofac Pathol 2013 May;17(2):319

Private Practice, Tokyo ; Division of Oral and Maxillofacial Reconstructive Surgery, Kyushu Dental College, Kitakyushu, Japan.

Placement of an anterior maxillary implant has a risk of interfering with the nasopalatine canal in the maxilla. This case report presents one of our experiences of a nasopalatine duct cyst that developed in association with a dental implant treatment. A 45-year-old man received an implant in the maxillary left central incisor due to root fracture. Read More

J Endod 2013 Sep 14;39(9):1185-8. Epub 2013 Jun 14.

Aviano AFB, Aviano, Italy.

Introduction: Nonendodontic lesions misdiagnosed as pathoses of endodontic origin are often referenced in the literature. One of the most frequent nonodontogenic cysts of the oral cavity, the nasopalatine duct cyst (NPDC), can be misdiagnosed as endodontic in nature.

Methods: A case is presented in which a patent NPDC was originally diagnosed as a sinus tract with subsequent endodontic nonsurgical retreatment and eventual extraction before endodontic consultation. Read More

SADJ 2012 Aug;67(7):376-9

Division of Oral Pathology, Faculty of Health Sciences, University of the Witwatersrand, South Africa.

Introduction: Pathologists commonly analyse patient data obtained from pathology records. Such information is useful in that it might provide an indication of changing patterns of disease, or of the aetio-pathogenesis of a disease process, but such data is seldom standardised.

Aim: To determine to what extent the lack of standardisation may influence the resultant data and the conclusions drawn. Read More

J Appl Oral Sci 2013 ;21(3):250-5

School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil.

Unlabelled: The nasopalatine region is composed of structures such as the vomeronasal organ and nasopalatine duct. The nasopalatine duct may provide the communication of the mouth to the nasal cavity in human fetuses and can be obliterated in an adult human. Knowledge on the development of the nasopalatine region and nasopalatine duct in humans is necessary for understanding the morphology and etiopathogenesis of lesions that occur in this region. Read More

Minerva Stomatol 2013 Jun;62(6):235-9

Institute of Clinical Dentistry University of Padua, Padua, Italy -

This report demonstrates the association between the development of a nasopalatine duct cyst and implant surgery, involving 2 implants positioned 4 years after teeth extraction at a site unaffected by any prior local endodontic disease or radiolucency. The cyst was removed and the residual void was filled with deproteinized bovine bone. Two-year follow-up showed no cyst recurrence, the normal anatomy was partly restored, and one of the implants showed clinical signs of re-osseointegration. Read More

Oral Implantol (Rome) 2012 Apr 16;5(2-3):47-53. Epub 2012 Nov 16.

Department of Periodontics University of Rome "Tor Vergata"; "S. Giovanni Calibita-Fatebenefratelli" Hospital.

Unlabelled: INTRODUCTION.: Nasopalatine duct cysts (NPDCs) are the most common developmental epithelial non-odontogenic cysts of the maxillae. Their origin, however, is still a source of considerable debate. Read More

J Oral Maxillofac Surg 2013 May 29;71(5):891-3. Epub 2012 Dec 29.

Department of Otolaryngology, Chang Gung Memorial Hospital, Taipei, Taiwan.

Oral Dis 2013 May 3;19(4):415-24. Epub 2012 Oct 3.

Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.

Objective: The aim of this study is to characterize immunohistochemical profiles of lining epithelia of nasopalatine duct cyst (NPC) as well as to correlate those findings with their clinicopathological features to understand the histopathogenesis of NPC.

Materials And Methods: Forty-one surgical specimens from NPC were examined for clinical profiles and expression of keratin-7, 13, MUC-1, and P63 by immunohistochemistry, compared to radicular cyst (RC) and maxillary sinusitis.

Results: Nasopalatine duct cyst was clinically characterized by male predominant occurrence: 44% of the cases involved tooth roots, and 70% with inflammatory backgrounds. Read More

J Craniofac Surg 2012 Sep;23(5):e472-4

Department of Oral and Maxillofacial Surgery, College of Dentistry, Anbar University, Ramadi City, Anbar Province, Iraq.

Nasopalatine duct cyst also known as nasopalatine cyst is a developmental, epithelial, non-neoplastic cyst that is considered to be the most common nonodontogenic cyst in the maxillofacial region. It is one of the many pathologic processes that may occur within the jaw bones, but it is unique in that it develops in only a single location--in the midline anterior maxilla. Nasopalatine cysts are usually asymptomatic and may be discovered during routine clinical and/or radiologic examination. Read More

J Oral Implantol 2012 Mar 12. Epub 2012 Mar 12.

British Society of Oral Implantology, Co-Ordinator of Post-Grad. Education, Education, British Society of Oral Implantology.

Abstract The dental literature reports frequently on both the success and survival of dental implants whereby the focus remains on the hard and soft tissue biological response to the implants. The predication and anticipation of adverse implant events can then lead to the pre-emption of implant loss. However, biological situations can arise that are outside the control of the clinician. Read More

J Craniofac Surg 2011 Nov;22(6):2160-2

Departments of Human Anatomy, University of Nairobi, Nairobi, Kenya.

The jaws are host to a variety of cysts due in large part to the tissues involved in tooth formation. Odontogenic cysts (OCs) are unique in that they affect only the oral and maxillofacial region. There are few studies from sub-Saharan Africa. Read More

J Endod 2011 Sep 20;37(9):1320-6. Epub 2011 Jul 20.

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.

Introduction: The nasopalatine duct cyst (NPDC) is the most frequent nonodontogenic cyst of the jaws and can be misinterpreted as an apical lesion of endodontic origin.

Methods: In the first case, a 17-year-old male patient was referred because of a pressure sensation in the anterior maxilla. The teeth #7, #8, #10, and #11 responded to cold sensitivity testing, and on tooth #9 an endodontic treatment had been performed 3 years ago. Read More

Br J Oral Maxillofac Surg 2012 Jul 9;50(5):440-2. Epub 2011 Aug 9.

Institute of Human Genetics, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel.

The pathogenesis of cysts that arise in the jaws is still not certain, and the underlying mechanisms of epithelial proliferation are not fully understood. Cysts of the jaw may involve a reactive, inflammatory, or neoplastic process. Cytogenetics, the study of the number and structure of chromosomes, has provided valuable information about the diagnosis, prognosis, and targeted treatment in many cancers, including oral squamous cell carcinoma. Read More

Med Oral Patol Oral Cir Bucal 2012 Jan 1;17(1):e108-15. Epub 2012 Jan 1.

Department of Oral Diagnosis and Radiology,Ondokuz Mayıs University, School of Dentistry, Kurupelit-Samsun, Turkey.

Objective: To determine the relative frequency and distribution of odontogenic and nonodontogenic cysts in a large Turkish population.

Study Design: A retrospective survey of jaw cysts was undertaken at the Oral Diagnosis and Radiology and Oral and Maxillofacial Surgery Department, Ondokuz Mayis University Dental School, Samsun, Turkey. Data were retrieved from clinical files, imaging, and histopathology reports from 2000 to 2008; a total of 12,350 patients were included. Read More

J Oral Maxillofac Surg 2011 Oct 12;69(10):2595-603. Epub 2011 Mar 12.

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.

Purpose: This study evaluates the dimensions of nasopalatine duct cysts (NPDCs) and the involvement of neighboring anatomical structures using standardized limited cone beam computed tomography (CBCT) and a possible correlation to the patient's age, gender, preoperative symptoms, and postsurgical complications.

Materials And Methods: The study included 25 patients with a confirmed histopathologic diagnosis of NPDC. Standardized measurements of NPDC dimensions were performed on sagittal, coronal, and axial CBCT sections. Read More

J Endod 2011 Mar 30;37(3):403-10. Epub 2010 Dec 30.

Brazilian Dentistry Association, Goiânia, GO, Brazil.

Introduction: An accurate differential diagnosis of apical periodontitis (AP) and nasopalatine duct cyst (NPDC) should be established to define the best treatment for endodontically treated maxillary anterior teeth with apical periodontitis. Three-dimensional cone beam computed tomography (CBCT) images help to plan treatment and to define an initial diagnostic hypothesis. However, endodontic treatment or retreatment may be unnecessarily prescribed when radiographs show a superimposition of the incisor foramen over the apex of maxillary central incisors, mimicking AP. Read More

Eur Arch Otorhinolaryngol 2011 Jun 16;268(6):917-22. Epub 2010 Dec 16.

Department of Oral Pathology, Federal University of Rio Grande do Norte, Natal, RN, Brazil.

The aim of the study was to determine the distribution of histologically diagnosed nonodontogenic cysts (nOCs) over a 40-year period in a Brazilian population. Biopsy records from patients with nOC from the files of the Oral Pathology Service during the period of 1970-2009 were evaluated. Among 10,311 oral biopsies, 58 met the criteria of nOCs. Read More

Head Neck Pathol 2010 Jun 4;4(2):121-2. Epub 2010 Mar 4.

Department of Anatomic Pathology, Naval Medical Center San Diego, 34800 Bob Wilson Drive, San Diego, CA 92134-5000, USA.

A case of a nasoplatine duct cyst in a 41-year-old male is reviewed. The typical radiologic and histologic findings are presented. Read More

Open Dent J 2010 Feb 11;4:8-12. Epub 2010 Feb 11.

University of Milan, Department of Oral Surgery, I.C.P. Dental School via della Commenda 10 Milan, Italy.

The nasopalatine duct cyst (NPDC) is the most common of the non-odontogenic cyst of the jaws. This cysts are usually central or unilateral with no prevalence of side occurrence. The NPDC is the most frequent developmental, nonodontogenic cyst of the jaws. Read More

Gen Dent 2009 Jul-Aug;57(4):402-7; quiz 408-9

OMFS PGY2 Program at Tripler Army Medical Center, Hawaii, USA.

A 46-year-old woman sought treatment for pain in her maxillary anterior teeth. Physical examination revealed facial tenderness and an expanded anterior maxilla, with palatal swelling in the approximate midline. The lesion had eroded through the midline anterior palate and anterior nasal spine and had shifted the nasal floor in a superior direction. Read More

Rev Stomatol Chir Maxillofac 2009 Nov 13;110(5):284-6. Epub 2009 Oct 13.

Service de chirurgie maxillofaciale et stomatologie, hôpital Adulte de la Pitié-Salpêtrière, université Pierre-et-Marie-Curie, Paris VI, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.

The nasopalatine cyst is the most common epithelial and non-odontogenic cyst of the maxilla. It is of embryological origin. It is different from a radicular cyst. Read More

Tex Dent J 2009 Aug;126(8):726-9

Department of Diagnostic Sciences, Baylor College of Dentistry, Texas A&M Health Science Center, Dallas, TX, USA.

SADJ 2009 Mar;64(2):78

Faculty of Dentistry, University of the Western Cape.

Pediatr Dent 2008 Nov-Dec;30(6):530-4

Division of Maxillofacial Surgery, University Hospital, Lausanne, Switzerland.

The nasopalatine duct cyst (NPDC) is a developmental cyst of the anterior palate's midline, usually presenting as an asymptomatic swelling located just behind the maxillary central incisors. It is the most common non-odontogenic cyst of the jaws but is seen rarely in children. The purpose of this paper was to report an unusual case of nasopalatine duct cyst in a 7-year-old boy who presented with a slow-growing, slight swelling of the anterior palate together with malpositioned permanent maxillary central incisors. Read More

JBR-BTR 2008 Jul-Aug;91(4):179

Department of Radiology, UZ Ghent, Ghent, Belgium.

Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008 Oct 25;106(4):e46-50. Epub 2008 Jul 25.

First Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka, Japan.

In this report, we show a case of the extensive nasopalatine duct cyst showing remarkable nasolabial protrusion. CT and MR examinations showed remarkable expansion of the extraosseous part of the lesion toward anterior and lateral sides, and this finding is considered to show the rather aggressive nature of this common cystic lesion after penetration of the maxillary cortex. Read More

Med Oral Patol Oral Cir Bucal 2008 Jul 1;13(7):E438-43. Epub 2008 Jul 1.

University of Barcelona Dental School, Spain.

Objectives: Nasopalatine duct cysts (NPDCs) are the most common developmental, epithelial and non-odontogenic cysts of the maxillae. The present study describes the clinicopathological characteristics of 22 NPDCs and discusses their etiology, incidence, treatment and prognosis, with a review of the literature on the subject.

Study Design: A retrospective observational study was made comprising a period of 36 years (1970-2006), and yielding a series of 22 patients with histopathological confirmation of NPDC. Read More

Implant Dent 2008 Jun;17(2):169-75

Dentistry, Rio de Janeiro Federal University, Rio de Janeiro, Brazil.

This case report presents an analysis of the clinical, radiographic, and histological features of a peri-implant lesion around an implant placed immediately after extraction of a tooth with a periapical lesion. A 52-year-old man received an immediate implant (3.75 x 11. Read More

Acta Otorrinolaringol Esp 2008 May;59(5):250-1

Servicio de Otorrinolaringología y Patología Cérvico-Facial, Hospital Clínico Universitario, Valladolid, España.

Nasopalatine are the most prevalent of non-odontogenic cysts in the oral cavity. Their origin, however, is still a source of controversy. We report the case of a patient with a mass in the anterior half of the hard palate following months of evolution, with a review of the literature. Read More

Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007 Dec 17;104(6):e35-41. Epub 2007 Oct 17.

Department of Oral Surgery, Oral Medicine, and Oral Pathology, Faculty of Odontology, Federal University of Minas Gerais, Belo Horizonte, Brazil.

Objective: To determine the demographic profile of all histologically diagnosed odontogenic cysts (OC) and nonodontogenic cysts (nOC) over a 51-year period in the Brazilian population.

Study Design: Case records of patients with OC and nOC from the files of the Oral Pathology Service, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil, during the period of 1953-2003 were evaluated.

Results: Among 19,064 oral biopsies, 2,905 (15. Read More