A kid with GHD The best worldwide player Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Muscle balance Facial proportion The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Increased demand of orthodontic Tx Esthetic problems Importance of facial soft tissues balance Increased demand of orthodontic Tx Esthetic problems Importance of facial soft tissues balance Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Facial proportion Muscle balance The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Facial height : Upper face Middle face Lower face 3 equal thirds Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Lower face proportions Upper lip length = 1/3 Lower lip length = 2/3 Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Facial breadth: “Rule of transverse fifths” Between helix of outer ears. Each fifth = width of 1 eye. Facial breadth: “Rule of transverse fifths” Between helix of outer ears. Each fifth = width of 1 eye. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Facial proportion Muscle balance The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Muscle balance Effects of cheek and lips are counteracted by the tongue. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Alteration of muscle balance: Equilibrium theory Tooth position changed in response to the exerted pressures (light and sustained) Alteration of muscle balance: Equilibrium theory Tooth position changed in response to the exerted pressures (light and sustained) Teeth Lips Cheeck Tongue Cheeck Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Lost left check by tropical infection Buccal movement of teeth Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Large tongue + thyroid deficiency Mandibular prognathism Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Muscle balance The lips Competent lips Incompetent lips Lip seal The tongue Oral seal swallowing Mouth breathing Other oral tissues Fraenum Periodontal and effect of other tissues Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
In lower third face Importance: 1. Lip seal (mouth breathing, swallow). 2. Phonation, facial esthetic. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
COMPETENT LIPS INCOMPETENT LIPS Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Features: Lips in contact at rest and function with minimal contraction of circum-oral muscles lip separation at rest should be not more than 4 mm. Features: Lips in contact at rest and function with minimal contraction of circum-oral muscles lip separation at rest should be not more than 4 mm. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Features: Wide gap between upper and lower lip in relaxed state (without minimal muscle activity) Features: Wide gap between upper and lower lip in relaxed state (without minimal muscle activity) Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Lip strain Excessive muscular activity to close the lips is indicated by puckering of the chin due to mentalis contraction. “ Potentially competent lip” Lip strain Excessive muscular activity to close the lips is indicated by puckering of the chin due to mentalis contraction. “ Potentially competent lip” Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Causes: 1- Morphological Short upper lip. “primary incompetent lips”. Causes: 1- Morphological Short upper lip. “primary incompetent lips”. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Causes: 2-Antero-posterior discrepancy “ class II division 1” Causes: 2-Antero-posterior discrepancy “ class II division 1” Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Causes: 3- Vertical discrepency: Increased lower face height Causes: 3- Vertical discrepency: Increased lower face height Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Causes: 4- Maxillary dental protrusion: lower lip falls between upper and lower incisors Causes: 4- Maxillary dental protrusion: lower lip falls between upper and lower incisors Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Normal oral seal: Lip contact No muscular activity Jaws in rest position Normal oral seal: Lip contact No muscular activity Jaws in rest position Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Muscle balance Facial proportion The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
muscular structure that forms part of the floor of the oral cavity.oral cavity Plays a major role in Oral seal Swallowing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
NORMAL LIP SEAL ADOPTIVE ORAL SEAL Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Contact “tongue – lower lip” Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Seen in open bite 2- Lip-palate contact Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Seen in class III 3- Tongue-upper lip Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Muscle balance Facial proportion The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Normal adult swallowing: Mature swallow seen by 18 of age Teeth together Mandible stabilized by muscle of mastication Tip of tongue behind incisors Minimum contraction of circumoral muscles Normal adult swallowing: Mature swallow seen by 18 of age Teeth together Mandible stabilized by muscle of mastication Tip of tongue behind incisors Minimum contraction of circumoral muscles Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
1- Oral Phase. 2- Pharyngeal Phase. 3- Esophageal Phase. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
1- ORAL PHASE Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
2- PHARYNGEAL PHASE The bolus passes through the fauces Nasopharynx is closed Tongue and hyoid move upward. The bolus passes through the fauces Nasopharynx is closed Tongue and hyoid move upward. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
3- ESOPHAGEAL PHASE Food passes through the esophagus to the stomach. Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Primary atypical swallowing: Increased over jet Decreased overbite Posterior cross bite Primary atypical swallowing: Increased over jet Decreased overbite Posterior cross bite Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Introduction Muscle balance Facial proportion The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
NASAL BREATHING MOUTH BREATHING Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
Causes of mouth breathing: Adenoidism Rhinitis Pharyngitis …etc Effect of mouth breathing: Adenoid facies Abnormalities in all planes of space Causes of mouth breathing: Adenoidism Rhinitis Pharyngitis …etc Effect of mouth breathing: Adenoid facies Abnormalities in all planes of space Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
The End
Introduction Muscle balance Facial proportion The lips Competent lips Incompetent lips The tongue Oral seal swallowing Mouth breathing Dr. Maamar Al-Samet, Faculty of dentistry, Jazan University
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