title: A rare case report and appraisal of the literature on spontaneous tooth exfoliation associated with trigeminal herpes zoster.
abstract: BACKGROUND
  Reports of post herpetic maxillofacial complications have been very rarely documented in the literature that includes periapical lesions, calcified and devitalized pulps, resorption of roots, osteonecrosis, and spontaneous exfoliation of teeth. The atypical feature of the case of concern to the dental surgeon is the rare complication of spontaneous tooth exfoliation following herpes zoster.
  
  
  METHODS
  This case reports a male patient of age 47 years who reported to the Department of Periodontology with the chief complaint of mobility in the left upper central incisor. Patient history revealed herpes zoster infection that began 11 days earlier along with underlying diabetes mellitus condition. We hereby report a known diabetic patient with history of herpes zoster infection who presented with rare complication of spontaneous tooth exfoliation involving the maxillary division of the trigeminal nerve.
  
  
  CONCLUSIONS
  Limited number of cases has been reported in the literature regarding spontaneous teeth exfoliation secondary to herpes zoster. The exact pathogenesis regarding the spontaneous exfoliation of teeth in herpes zoster patient is still controversial. Thus, an oral health care provider should be aware of this rare complication while managing a case of tooth mobility with the previous history of herpes zoster of trigeminal nerve.
authors.affiliation: Department of Periodontology and Implantology, Himachal Dental College, Sundernagar, Himachal Pradesh, 175002, India.
authors.forename: Rupinder
authors.initials: R
authors.lastname: Kaur
authors.affiliation: Department of Oral and Maxillofacial Surgery, PDM Dental College and Research Institute, Sarai Aurangabad, Bahadurgarh, 124507, Haryana, India. dasspr009@gmail.com.
authors.forename: Pooja
authors.initials: P
authors.lastname: Rani
authors.affiliation: Department of Oral and Maxillofacial Surgery, Himachal Dental College, Sundernagar, India.
authors.forename: Divye
authors.initials: D
authors.lastname: Malhotra
authors.affiliation: Department of Pathology, Postgraduate Institute of Medical Sciences and Research, Chandigarh, India.
authors.forename: Rajwant
authors.initials: R
authors.lastname: Kaur
authors.affiliation: Department of Anatomy, Lady Hardinge Medical College, New Delhi, India.
authors.forename: Praveen Kumar
authors.initials: PK
authors.lastname: Dass
mesh_terms: D048909:Diabetes Complications / Q000175:diagnosis*; D006563:Herpes Zoster Ophthalmicus / Q000175:diagnosis*; D006801:Humans; D007180:Incisor; D008297:Male; D008437:Maxilla / Q000294:innervation; D008875:Middle Aged; D011862:Radiography, Panoramic; D014080:Tooth Exfoliation / Q000175:diagnosis*; D014086:Tooth Mobility / Q000175:diagnosis*; D020390:Tooth Socket / Q000000981:diagnostic imaging; D020433:Trigeminal Nerve Diseases / Q000175:diagnosis*
keywords: Herpes zoster; Post herpetic; Tooth exfoliation; Trigeminal nerve