Abstract
Abnormalities of tooth number in development of the dentition are quite common; however, concomitant hypo-hyperdontia is a rare mixed numeric anomalous condition, especially when it occurs in the same dental arch and in a non-syndromic situation. The presence of this condition specifically in the mandibular anterior region is reported very infrequently. This case report presents the case of a 9 years old non-syndromic male with missing mandibular central incisors and an erupted mandibular mesiodens along with the review of literature. To ensure optimum function and aesthetics, cosmetic recontouring was performed after oral prophylaxis. This is the ninth case reported in the dental literature till date, with the two anomalies manifesting in the anterior region of the mandible. This article also discusses the review of literature of concomitant hypo-hyperdontia.
Highlights
Concomitant hypo-hyperdontia is a rare mixed numeric anomalous condition, where developmental absence of teeth (Hypodontia) and supernumerary teeth (Hyperdontia) co-exist in same individual
The presence of this condition in the mandibular anterior region is reported very infrequently. This case report presents the case of a 9 years old non-syndromic male with missing mandibular central incisors and an erupted mandibular mesiodens along with the review of literature
Very few cases have been reported in the mandibular arch & Hypohyperdontia is extremely rare
Summary
Concomitant hypo-hyperdontia ( known as oligopleiodontia) is a rare mixed numeric anomalous condition, where developmental absence of teeth (Hypodontia) and supernumerary teeth (Hyperdontia) co-exist in same individual. The probability of the condition is between 0.0008 and 0.0015, with most of the cases documented in maxillary arch [1]. The aetiopathogenesis of this simultaneous hyper-hypodontia is obscure [2]. Very few cases have been reported with this condition in the English literature till date. Is the ninth case to be reported with two anomalies manifesting in mandibular anterior region. The rarity of this condition of mixed numerical superiority and inferiority of the human dentition in the mandibular incisor region prompted this report
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