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Bimaxillary concomitant hypohyperdontia in a 10-year-old child
  1. Pratik B Kariya1,
  2. Sweta Singh2,
  3. Narayan Kulkarni3,
  4. Ankita Arora4
  1. 1 Department of Pedodontics and Preventive Dentistry, KM Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India
  2. 2 Reader, Public Health Dentistry, KM Shah Dental College, Sumandeep Vidyapeeth, Vadodara, Gujarat, India
  3. 3 Department of Orthodontics, KM Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India
  4. 4 Department of Pedodontics and Preventive Dentistry, Melaka Manipal Medical College, Bukit Baru, Melaka, Malaysia
  1. Correspondence to Dr Ankita Arora, 4ankitaarora{at}


Numerical anomalies, either addition or deletion, are quite a common findings in human dentition. However, it is extremely rare to find both hypodontia and hyperdontia simultaneously in the same individual. This condition is referred as concomitant hypohyperdontia (CHH). Aetiology of this condition is still obscure. The prevalence of CHH has been reported to be between 0.002% and 3.1%. This case report highlights a rare occurrence of bimaxillary CHH represented by the absence of both mandibular central incisors and presence of two supernumerary teeth in the maxillary anterior segment. The rarity of such condition of mixed hypodontia as well as hyperdontia in single human dentition prompted the author to report the case.

  • dentistry and oral medicine
  • oral and maxillofacial surgery
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  • Contributors PBK: Clinical examination of case and history taking, diagnosis, and clinical photographs recording. SS: Radiographic investigation and manuscript writing. NK: Orthodontic consultation and patient counselling, and manuscript editing. AA: Manuscript writing and editing, and review of literature.

  • Competing interests None declared.

  • Patient consent Obtained from guardian.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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