Early postnatal development of the mandibular permanent first molar in infants with isolated cleft palate

Abstract

Children with ICP showed smaller dimensions of the M1(inf) , and in addition, the maturation of M1(inf) was delayed.

Early post‐natal development of the mandibular permanent first molar in infants with unilateral complete cleft lip and palate

“…In the present study, like in the study by Hermann et al, lateral cephalograms were used to assess tooth maturation of the of M1 inf according to Haavikko, which may introduce a possible error in case of asymmetric dental development. However, previous studies have shown that asymmetric dental development is most likely in the region in close proximity to the cleft (eg, maxillary incisors), whereas an asymmetric development of the posterior teeth is rare …”

“…[20][21][22][23] Delay in mineralization of M1 inf was also found in a previous study by us on infants and young children with CP. 24 The delayed mineralization of the teeth observed in subjects with cleft palate with/without a cleft lip might be related to the observed delay in somatic development (first seen as reduced body weight and later as reduced body length). 24 The delay in somatic development as well as the delay in mineralization of the teeth is most likely caused by the feeding difficulties in cleft infants 25,26 and subsequent malnutrition/undernourishment.…”

“…24 The delayed mineralization of the teeth observed in subjects with cleft palate with/without a cleft lip might be related to the observed delay in somatic development (first seen as reduced body weight and later as reduced body length). 24 The delay in somatic development as well as the delay in mineralization of the teeth is most likely caused by the feeding difficulties in cleft infants 25,26 and subsequent malnutrition/undernourishment. Studies investigating the influence of general malnutrition/undernourishment in childhood have shown a significant relation between malnutrition/undernourishment and delay in skeletal as well as dental maturation/mineralization.…”

“…The methods are the same as previously used in a study describing the early post‐natal development of the mandibular permanent first molar in infants with CP …”

“…Our group has in a previous study analysed maturation, and width of the dental follicle and crown of the mandibular first permanent molar (M1 inf ) from cephalometric radiographs in young children with CP, and found the M1 inf to be delayed in maturation and reduced in size. 24 The aim of the present study was to assess maturation and width of the follicle and crown of M1 inf in a group of infants with UCCLP.…”