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Biomedical subjects

H Friede

Publications and source records attributed to H Friede.

82 records · Page 5Linked to original sources
PubMed1976

Growth of the vomero-premaxillary suture in children with bilateral cleft lip and palate. A histological and roentgencephalometric study.

The significance of the vomero-premaxillary suture (VPS) in mid-facial development in patients with complete bilateral cleft lip and palate (C-BCLP) was evaluated. Histological analysis of the VPS in eight specimens, ranging in age from full term to 22 months, revealed evidence of growth at both sutural borders. Various theories to explain the consistent presence of secondary cartilage, localized mainly to the posterior end of the suture, were assessed. It was considered most likely that the formation of cartilage was promoted by mechanical stresses, set up during a period of rapid growth. Roentgencephalometric data from seven C-BCLP patients (age range: 2-7 months) demonstrated the existence of a true, rather than a relative, premaxillary protrusion. Five patients had metallic implants inserted on either side of the VPS at the time of initial surgery and were followed up roentgencephalometrically to ages ranging from 5 to 36 months. Although continuous growth was recorded in the VPS, there was a post-surgical decrease in the premaxillary protrusion. On the basis of both the histology and roentgencephalometry it was concluded that traumatic surgery involving the VPS would be likely to contribute to the impaired mid-facial growth sometimes seen in operated C-BCLP patients.

Cephalometry↗
PubMed1975

Two sisters with unoperated bilateral cleft lip and palate, age 6 and 4 years.

Two sisters with unoperated bilateral cleft lip and palate, aged 5 years 8 months and 3 years II months, are described. The degree of premaxillary protrusion in both was similar to that in unoperated infants. On the other hand, children operated in infancy showed less midfacial protrusion than the sisters following repair of their lips at a later age suggesting that the repaired lip has a long-acting effect in restricting growth of the premaxillary-vomerine complex. Later, forwards growth of the mandible and elongation of the face also serve to minimise the convexity due to the projecting premaxilla.

Age Factors↗
PubMedDate not supplied

A comparison of babbling and speech at pre-speech level, 3, and 5 years of age in children with cleft lip and palate treated with delayed hard palate closure.

Babbling and speech in 21 children with cleft palate were compared at pre-speech level, 3, and 5 years of age. The aims were to study if misarticulations in pre-school speech appear to be articulatorily related to the sound productions in pre-speech, whether the feeding technique influenced the prevalence of anterior articulation, and if there was a relationship between speech and the size of the residual cleft at 3 and 5 years of age. All the children had the soft palate closed, whereas the cleft in the hard palate was left open to be closed later on. Perceptual judgement of speech revealed a high prevalence of hypernasality, nasal escape and retracted oral articulation of dental or alveolar plosives. The latter was correlated with the size of the residual cleft area. There was a tendency towards a relationship between absence of anterior sound productions in babbling and retracted oral articulation in speech. The feeding technique, however, appeared not to have had any influence on articulatory place.

Articulation Disorders↗
PubMedDate not supplied

Vertical position, rotation, and tipping of molars without antagonists.

PURPOSE: There has been a general belief that permanent teeth without antagonists overerupt, creating, after some time, considerable clinical problems. However, very few studies in the literature support this statement. The purpose of this investigation was to examine the position of molars that had been unopposed for a long period and to test the hypothesis that overeruption does affect every tooth without an antagonist. MATERIALS AND METHODS: Fifty-three individuals were examined clinically, and dental casts were taken to evaluate the position of unopposed molars. There were 84 molars (61 in the maxilla and 23 in the mandible) with a documented period of at least 10 years without antagonists. Among these teeth, 25 molars had neither an antagonist nor a mesially adjacent tooth. A qualitative method was used to evaluate the position of the molars in the vertical direction: (1) teeth with no sign of overeruption, (2) teeth with slight overeruption (< 2 mm), and (3) teeth with moderate to severe overeruption (> or = 2 mm). RESULTS: Of the 84 molars examined, 15 teeth (18%) revealed no signs of overeruption, 49 teeth (58%) displayed overeruption of less than 2 mm, and 20 teeth (24%) showed moderate to severe overeruption. Individuals with molars that had lost their antagonists in adult age had a lower risk for overeruption than the other subjects examined. The existence of adjacent teeth was important for the position of the unopposed molar in a mesiodistal or buccolingual direction. Molar rotation was more frequent in the maxilla, whereas tipping was more common in the mandible. CONCLUSION: It is concluded that not all molars without antagonists overerupt, not even in a long-term perspective.

Adult↗