THEOREM-2 ELIMINATION OF THE CAUSE OF MALOCCLUSION WILL PREVENT RECURRENCE. e pasture mouth breathina
Elimination of the cause of Malocclusion will prevent recurrence. Habits, Tongue posture, mouth breathing Theorem - 2
THEOREM-3 MALOCCLUSION SHOULD BE OVERCORRECTED AS A SAFETY FACTOR Class Il:edge-to-edge 。Class III ●Open bite ●Deep bite ●Expansion ● Rotations-provide space for eruption,surgical intervention
Malocclusion should be overcorrected as a safety factor ⚫ Class II: edge-to-edge ⚫ Class III ⚫ Open bite ⚫ Deep bite ⚫ Expansion ⚫ Rotations- provide space for eruption, surgical intervention Theorem - 3
THEOREM-4 PROPER OCCLUSION IS A POTENT FACTOR IN HOLDING TEETH IN THEIR CORRECTED POSITIONS. Maintain health of the periodontium. Functional occlusion
Proper occlusion is a potent factor in holding teeth in their corrected positions. – Maintain health of the periodontium. – Functional occlusion. Theorem - 4
THEOREM-5 BONE AND ADJACENT TISSUES MUST BE ALLOWED TIME TO REORGANIZE AROUND NEWLY POSITIONED TEETH ●Fixed retention No positive fixation-allow natural functioning Gottlieb (1935),Oppenheim (1935)and Orban (1936)- First orthodontic literature on microscopic studies of bundle and lamella bone spicules. Oppenheim-appliance should be inhibitory Hixon Muscular balance
Bone and adjacent tissues must be allowed time to reorganize around newly positioned teeth ⚫ Fixed retention ⚫ No positive fixation- allow natural functioning Gottlieb (1935), Oppenheim (1935) and Orban (1936) - First orthodontic literature on microscopic studies of bundle and lamella bone spicules. Oppenheim – appliance should be inhibitory Hixon – Muscular balance Theorem - 5
THEOREM-6 IF THE LOWER INCISORS ARE PLACED UPRIGHT OVER BASAL BONE,THEY ARE MORE LIKELY TO REMAIN IN GOOD ALIGNMENT. THE TERM UPR/GHTIS DEFINABLE: PERPENDICULAR TO THE MANDIBULAR PLANE,5 DEGREES OR SOME OTHER SPECIFIED ANGULATION TO THE OCCLUSAL PLANE OR FRANKFORT HORIZONTAL PLANE
If the lower incisors are placed upright over basal bone, they are more likely to remain in good alignment. The term upright is definable: perpendicular to the mandibular plane, 5 degrees or some other specified angulation to the occlusal plane or Frankfort horizontal plane. Theorem - 6