title: Benign paroxysmal positional vertigo during lateral window sinus lift procedure: a case report and review.
abstract: OBJECTIVE
  Benign paroxysmal positional vertigo (BPPV) is a possible and well-documented complication after the osteotome internal sinus lift technique. But we report a case of unexpected BPPV complication after direct sinus lift by lateral approach for implant placement that was not reported till date.
  
  
  METHODS
  A 30-year-old woman had undergone direct sinus lift procedure by lateral window technique to replace her missing right molar with dental implant. The patient suffered with intense vertigo with nausea, vomiting, and aggravated when she changed the position of her head towards right immediately after procedure and was diagnosed with BPPV after the referral.
  
  
  CONCLUSIONS
  We assume that prolonged hyperextended head position of iatrogenic origin can be the reason, in this case, for BPPV after direct lateral sinus lift procedure. There is also a possibility that the temporal relationship with the surgical area and surgical action by rotating tools during window preparation are also contributing factors.
authors.affiliation: *Assistant Professor, Department of Oral & Maxillofacial Surgery, Sri Rajiv Gandhi College of Dental Sciences, Bangalore, India. †Assistant Professor, Department of Oral Medicine & Radiology, AECT Maruthi Dental College, Bangalore, India. ‡Post Graduate Resident, Department of Periodontia, M S Ramaiah Dental College, Bangalore, India.
authors.forename: Sudhakara
authors.initials: S
authors.lastname: Reddy K
authors.forename: M E
authors.initials: ME
authors.lastname: Shivu
authors.forename: Akarsh
authors.initials: A
authors.lastname: Billimaga
mesh_terms: D000328:Adult; D065635:Benign Paroxysmal Positional Vertigo / Q000209:etiology*; D003758:Dental Implantation, Endosseous / Q000009:adverse effects / Q000379:methods; D019250:Dental Implants, Single-Tooth; D005260:Female; D006801:Humans; D059546:Sinus Floor Augmentation / Q000009:adverse effects* / Q000379:methods