Intraoral dental sinus

Intraoral dental sinus (also termed a parulis and commonly, a gumboil) is an oral lesion characterized by a soft erythematous papule (red spot) that develops on the alveolar process in association with a non-vital tooth and accompanying dental abscess.^[1] A parulis is made up of inflamed granulation tissue.

Less commonly, dental infections drain onto the surface of the skin, forming a cutaneous sinus of dental origin.
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References

^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1.

Oral and maxillofacial pathology

Lips
Cheilitis Actinic Angular Plasma cell Cleft lip Congenital lip pit Eclabium Herpes labialis Macrocheilia Microcheilia Nasolabial cyst Sun poisoning Trumpeter's wart

Tongue
Ankyloglossia Black hairy tongue Caviar tongue Crenated tongue Cunnilingus tongue Fissured tongue Foliate papillitis Glossitis Geographic tongue Median rhomboid glossitis Transient lingual papillitis Glossoptosis Hypoglossia Lingual thyroid Macroglossia Microglossia Rhabdomyoma

Palate
Bednar's aphthae Cleft palate High-arched palate Palatal cysts of the newborn Inflammatory papillary hyperplasia Stomatitis nicotina Torus palatinus

Oral mucosa – Lining of mouth
Amalgam tattoo Angina bullosa haemorrhagica Behçet's disease Bohn's nodules Burning mouth syndrome Candidiasis Condyloma acuminatum Darier's disease Epulis fissuratum Erythema multiforme Erythroplakia Fibroma Giant-cell Focal epithelial hyperplasia Fordyce spots Hairy leukoplakia Hand, foot and mouth disease Hereditary benign intraepithelial dyskeratosis Herpangina Herpes zoster Intraoral dental sinus Irritation fibroma Leukoedema Leukoplakia Lichen planus Linea alba Lupus erythematosus Melanocytic nevus Melanocytic oral lesion Molluscum contagiosum Morsicatio buccarum Oral cancer Benign: Squamous cell papilloma Keratoacanthoma Malignant: Adenosquamous carcinoma Basaloid squamous carcinoma Mucosal melanoma Spindle cell carcinoma Squamous cell carcinoma Verrucous carcinoma Oral florid papillomatosis Oral melanosis Smoker's melanosis Pemphigoid Benign mucous membrane Pemphigus Plasmoacanthoma Stomatitis Aphthous Denture-related Herpetic Smokeless tobacco keratosis Submucous fibrosis Ulceration Riga–Fede disease Verruca vulgaris Verruciform xanthoma White sponge nevus

Oral mucosa – Lining of mouth

Teeth (pulp, dentin, enamel)
Amelogenesis imperfecta Ankylosis Anodontia Caries Early childhood caries Concrescence Failure of eruption of teeth Dens evaginatus Talon cusp Dentin dysplasia Dentin hypersensitivity Dentinogenesis imperfecta Dilaceration Discoloration Ectopic enamel Enamel hypocalcification Enamel hypoplasia Turner's hypoplasia Enamel pearl Fluorosis Fusion Gemination Hyperdontia Hypodontia Maxillary lateral incisor agenesis Impaction Wisdom tooth impaction Macrodontia Meth mouth Microdontia Odontogenic tumors Keratocystic odontogenic tumour Odontoma Dens in dente Open contact Premature eruption Neonatal teeth Pulp calcification Pulp stone Pulp canal obliteration Pulp necrosis Pulp polyp Pulpitis Regional odontodysplasia Resorption Shovel-shaped incisors Supernumerary root Taurodontism Trauma Avulsion Cracked tooth syndrome Vertical root fracture Occlusal Tooth loss Edentulism Tooth wear Abrasion Abfraction Acid erosion Attrition

Teeth (pulp, dentin, enamel)

Amelogenesis imperfecta
Ankylosis
Anodontia
Caries
- Early childhood caries
Concrescence
Failure of eruption of teeth
Dens evaginatus
- Talon cusp
Dentin dysplasia
Dentin hypersensitivity
Dentinogenesis imperfecta
Dilaceration
Discoloration
Ectopic enamel
Enamel hypocalcification
Enamel hypoplasia
- Turner's hypoplasia
Enamel pearl
Fluorosis
Fusion
Gemination
Hyperdontia
Hypodontia
- Maxillary lateral incisor agenesis
Impaction
- Wisdom tooth impaction
Macrodontia
Meth mouth
Microdontia
Odontogenic tumors
- Keratocystic odontogenic tumour
Odontoma
- Dens in dente
Open contact
Premature eruption
- Neonatal teeth
Pulp calcification
- Pulp stone
Pulp canal obliteration
Pulp necrosis
Pulp polyp
Pulpitis
Regional odontodysplasia
Resorption
Shovel-shaped incisors
Supernumerary root
Taurodontism
Trauma
- Avulsion
- Cracked tooth syndrome
- Vertical root fracture
- Occlusal
Tooth loss
- Edentulism
Tooth wear
- Abrasion
- Abfraction
- Acid erosion
- Attrition

Periodontium (gingiva, periodontal ligament, cementum, alveolus) – Gums and tooth-supporting structures
Cementicle Cementoblastoma Gigantiform Cementoma Eruption cyst Epulis Pyogenic granuloma Congenital epulis Gingival enlargement Gingival cyst of the adult Gingival cyst of the newborn Gingivitis Desquamative Granulomatous Plasma cell Hereditary gingival fibromatosis Hypercementosis Hypocementosis Linear gingival erythema Necrotizing periodontal diseases Acute necrotizing ulcerative gingivitis Pericoronitis Peri-implantitis Periodontal abscess Periodontal trauma Periodontitis Aggressive As a manifestation of systemic disease Chronic Perio-endo lesion Teething

Periodontium (gingiva, periodontal ligament, cementum, alveolus) – Gums and tooth-supporting structures

Periapical, mandibular and maxillary hard tissues – Bones of jaws
Agnathia Alveolar osteitis Buccal exostosis Cherubism Idiopathic osteosclerosis Mandibular fracture Microgenia Micrognathia Intraosseous cysts Odontogenic: periapical Dentigerous Buccal bifurcation Lateral periodontal Globulomaxillary Calcifying odontogenic Glandular odontogenic Non-odontogenic: Nasopalatine duct Median mandibular Median palatal Traumatic bone Osteoma Osteomyelitis Osteonecrosis Bisphosphonate-associated Neuralgia-inducing cavitational osteonecrosis Osteoradionecrosis Osteoporotic bone marrow defect Paget's disease of bone Periapical abscess Phoenix abscess Periapical periodontitis Stafne defect Torus mandibularis

Periapical, mandibular and maxillary hard tissues – Bones of jaws

Temporomandibular joints, muscles of mastication and malocclusions – Jaw joints, chewing muscles and bite abnormalities
Bruxism Condylar resorption Mandibular dislocation Malocclusion Crossbite Open bite Overbite Overeruption Overjet Prognathia Retrognathia Scissor bite Maxillary hypoplasia Temporomandibular joint dysfunction Condylar hypoplasia Condylar hyperplasia

Salivary glands
Benign lymphoepithelial lesion Ectopic salivary gland tissue Frey's syndrome HIV salivary gland disease Necrotizing sialometaplasia Mucocele Ranula Pneumoparotitis Salivary duct stricture Salivary gland aplasia Salivary gland atresia Salivary gland diverticulum Salivary gland fistula Salivary gland hyperplasia Salivary gland hypoplasia Salivary gland neoplasms Benign: Basal cell adenoma Canalicular adenoma Ductal papilloma Monomorphic adenoma Myoepithelioma Oncocytoma Papillary cystadenoma lymphomatosum Pleomorphic adenoma Sebaceous adenoma Malignant: Acinic cell carcinoma Adenocarcinoma Adenoid cystic carcinoma Carcinoma ex pleomorphic adenoma Lymphoma Mucoepidermoid carcinoma Sclerosing polycystic adenosis Sialadenitis Parotitis Chronic sclerosing sialadenitis Sialectasis Sialocele Sialodochitis Sialosis Sialolithiasis Sjögren's syndrome

Salivary glands

Stomatognathic system – Teeth, jaws, tongue and associated soft tissues
Bruxism Mouth breathing Sleep apnea Catathrenia Central hypoventilation syndrome Obesity hypoventilation syndrome Obstructive sleep apnea Periodic breathing Snoring

Orofacial soft tissues – Soft tissues around the mouth
Actinomycosis Angioedema Basal cell carcinoma Cutaneous sinus of dental origin Cystic hygroma Gnathophyma Ludwig's angina Macrostomia Melkersson–Rosenthal syndrome Microstomia Noma Oral Crohn's disease Orofacial granulomatosis Perioral dermatitis Pyostomatitis vegetans