Podcast
Questions and Answers
Ethyl _______________ is a teratogen that can cause central mid-face deficiency.
Ethyl _______________ is a teratogen that can cause central mid-face deficiency.
alcohol
An excess of _______________ can lead to premature suture loss.
An excess of _______________ can lead to premature suture loss.
Vitamin D
The Rubella _______________ can cause microphthalmia, cataracts, and deafness.
The Rubella _______________ can cause microphthalmia, cataracts, and deafness.
virus
X-_______________ can cause microcephaly.
X-_______________ can cause microcephaly.
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Pierre Robin Syndrome is characterized by a _______________ mandible.
Pierre Robin Syndrome is characterized by a _______________ mandible.
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Treacher Collins Syndrome is also known as _______________ Syndrome.
Treacher Collins Syndrome is also known as _______________ Syndrome.
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Postnatal _______________ factors can cause malocclusion due to functional and environmental interferences.
Postnatal _______________ factors can cause malocclusion due to functional and environmental interferences.
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Muscular and _______________ factors can cause malocclusion due to abnormal forces applied during chewing.
Muscular and _______________ factors can cause malocclusion due to abnormal forces applied during chewing.
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Environmental _______________ such as birth injury and cerebral palsy can cause malocclusion.
Environmental _______________ such as birth injury and cerebral palsy can cause malocclusion.
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The duration of a force is more important than its _______________ in determining its effect on dentition.
The duration of a force is more important than its _______________ in determining its effect on dentition.
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Study Notes
Etiology of Malocclusion
- Heavy fibrous frenum may contribute to malocclusion
- Blanching of tissue lingual to maxillary central incisors can be noted
Prenatal Factors
- Trauma, maternal diet, and maternal metabolism can contribute to malocclusion
- Genetic factors can occur before birth
- Differentiative and congenital factors can also contribute to malocclusion
- Teratogens, such as chemicals and other agents, can produce embryonic defects if given at a critical time
Teratogens Affecting Dentofacial Development
- Aspirin, cigarette smoke, Dilantin, and Valium can cause cleft lip and palate
- Thalidomide can cause malformations, similar to hemifacial microsomia and Treacher Collins syndrome
- Infectious diseases, such as poliomyelitis, can contribute to malocclusion
- Vitamin D excess can cause premature suture loss
- Rubella virus can cause microphthalmia, cataracts, and deafness
- X-radiation can cause microcephaly
Postnatal Factors
- Developmental factors, such as functional and environmental interferences, can contribute to malocclusion
- Functional factors, such as muscular forces, can contribute to malocclusion
- Environmental factors, such as birth injury, delivery-induced deformation, and disabling accidents, can contribute to malocclusion
- Prolonged retention of deciduous teeth can cause malocclusion
- Premature loss of permanent teeth can also contribute to malocclusion
Leeway Space
- Maxillary leeway space is approximately 0.9 mm
- Mandibular leeway space is approximately 1.7 mm
Eruption of Permanent Teeth
- Permanent molar is likely to drift mesially more rapidly in the absence of occlusal contacts
- Maxillary canine often shows an abnormal eruptive pathway
- Sequence of eruption is affected by the distance it has to travel from its developmental position
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Description
This quiz explores the relationship between dental health and prenatal environment, including the impact of maternal diet and metabolism on oral development.
