Pedodontics Lec12 - Dental Malocclusion Factors

Which factor can dramatically influence the deposition of dental arch during childhood?

What is the primary determinant of dental malocclusion?

What is the main objective of space maintenance in dentistry?

What should a space maintainer avoid in terms of occluding teeth eruption?

What characteristic should a space maintainer possess regarding adjacent teeth?

Why should a space maintainer be easily cleansable?

Which type of primary molar loss results in the greatest amount of space closure in a quadrant?

When should the appliance be placed after the loss of a tooth to prevent space closure?

What is the effect of losing a first primary molar with retention of the second primary molar on space closure?

When does maximum space get lost after extraction?

What factor determines the amount of space closure when upper or lower first primary molars are lost?

What happens when second primary molars are lost after the eruption of first permanent molars?

How do maxillary posterior spaces primarily close?

How do mandibular spaces primarily close?

What is typically noted in the lower arch regarding the bodily movement of first molars?

What happens to lower molars during space loss movements?

What happens when the first primary molar is lost during active eruption of the first permanent molar?

Why are predictions unreliable when bone covering the developing permanent tooth is destroyed by infection?

What may produce abnormal forces in initiating collapse of dental arches after untimely loss of primary teeth?

How is arch length adequacy estimated in orthodontic analysis?

When does a significant arch length deficiency that requires space regaining or extraction exist according to the text?

What factor may not make space maintenance desirable during orthodontic treatment?

Which factor influences planning due to its association with either space gain or space loss?

What may have a pronounced negative effect after the loss of mandibular primary molars or canines?

What can happen if the mandibular primary 2nd molar is prematurely lost and the mandibular 2nd permanent molar erupts before the 2nd premolar?

What is a possible consequence of delayed eruption of permanent teeth, over-retained primary teeth, or impacted permanent teeth?

What aids the practitioner in predicting the amount of available space for unerupted permanent teeth in the mixed dentition?

What does the dentist need to decide if permanent teeth are congenitally absent?

How do abnormal oral musculature or habits influence dental arches?

What may be needed if there is an over-retained primary tooth that is impacting the eruption process of permanent teeth?

Objectives of space maintenance designed to preserve the space created by the premature loss of a primary tooth or a group of teeth. 1.Preservation of ______ space

Space Maintainer : It is a fixed or removable ______

Preservation of the integrity of the dental ______

In case of anterior space maintenance, it should aid in esthetics and ______

Should not interfere with eruption of occluding ______

Should be simple and ______

Should not impose excessive stress on adjacent tooth, that means it's passive in not imposing pressures on remaining teeth that might affect ______ movements

Easily cleansable without enhancing dental caries or soft-tissue ______

Loss of maxillary second primary molars results in the greatest amount of ______ closure, up to 8 mm of space loss in a quadrant.

Loss of mandibular second primary molars shows the next greatest amount, up to 4 mm in a ______.

Loss of upper or lower first primary molars shows almost equal amounts of space closure when compared with one another; the amount is most affected by timing of the first primary molar ______.

Space loss potential is particularly high if the primary molar loss occurs in approximation to first permanent molar eruption, irrespective of which primary molar is lost and in which arch the loss ______.

After first permanent molars have erupted into occlusion, loss of second primary molars may still result in significant space ______.

Loss of a first primary molar with retention of the second primary molar shows minimal amounts of space closure because the second primary molar serves to buttress first permanent molar positions after occlusion is ______.

The younger the patient, more is the space ______.

Maximum space is lost during first 6 months of extraction and most immediate loss is within 76 ______.

If the mandibular primary 2nd molar is prematurely lost and mandibular 2nd permanent molar is erupting before the 2nd premolar, arch length loss can occur due to mesial forces generated on the 1st permanent molar as the 2nd permanent molar ______

Delayed eruption of permanent teeth, over-retained or ankylosed primary teeth, or impacted permanent teeth can result in a delay of the ______ process

A space analysis conducted in the mixed dentition will aid the practitioner in a prediction of the amount of available space for the unerupted permanent ______

Congenital absence of the permanent tooth may lead the dentist to decide whether to hold the space for many years until a fixed replacement can be provided or to allow the space to ______

Abnormal oral musculature exert abnormal pressure on dental arches and may influence the type and planning of space ______

With the removal of over-retained or ankylosed primary teeth, an appliance may be needed to hold the space until the permanent tooth erupts into a ______ position

A decision may be made at this point on the type of appliance (space maintainer or space regainer) that is ______

Abnormal oral habits will exert abnormal pressure on dental arches and may influence the type and planning of space ______

Thumb or finger habits may similarly produce abnormal forces in initiating collapse of the dental arches after untimely loss of ______ teeth.

If the arch length deficiency is 2 to 3 mm or more per quadrant, a significant discrepancy exists where space regaining, serial extraction, and/or comprehensive orthodontic treatment may be ______.

Some of these factors are: growth of jaws, proximal caries, wear and ______.

Arch Length Adequacy will be estimated by position of incisors, Leeway space and incisor ______.

If there is no question that permanent teeth will have to be removed to obtain a favorable occlusion, space maintenance may not be desirable because the space would need to be closed during orthodontic ______ anyway.

Strong mentalis muscle patterns may have a pronounced negative effect after loss of mandibular primary molars or canines, with collapse of the arch and the distal drifting of the anterior segment that is often ______.

If analysis indicates a positive arch length or deficiency of less than 1 to 2 mm per quadrant, a space maintainer may be beneficial in holding tooth ______.

These factors influence planning because they may be associated with either space gain or space ______.

If there is bone covering the crowns, it can be readily predicted that eruption will not occur for many months; insertion of a space-maintaining appliance is indicated. A guideline for predicting ______ is that erupting premolars usually require 4 to 5 months to move through 1 mm of bone as measured on a bite-wing radiograph. Eruption Status of the Succedaneous Tooth is estimated by the amount of root completion (tooth erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a permanent successor may be delayed or accelerated after premature loss of a primary tooth, depending on the developmental status, bone density of the area, and nature of the primary tooth loss. Very early loss before significant root formation of the permanent successor usually results in delayed eruption timing. Dental Age of Patient is the age calculated according to the last tooth erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

In such a situation the emergence of the ______ tooth is usually accelerated. If there is bone covering the crowns, it can be readily predicted that eruption will not occur for many months; insertion of a space-maintaining appliance is indicated. A guideline for predicting emergence is that erupting premolars usually require 4 to 5 months to move through 1 mm of bone as measured on a bite-wing radiograph. Eruption Status of the Succedaneous Tooth is estimated by the amount of root completion (tooth erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a ______ successor may be delayed or accelerated after premature loss of a primary tooth, depending on the developmental status, bone density of the area, and nature of the primary tooth loss. Very early loss before significant root formation of the ______ successor usually results in delayed eruption timing. Dental Age of Patient is the age calculated according to the last tooth erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

In such a situation the emergence of the permanent ______ is usually accelerated. If there is bone covering the crowns, it can be readily predicted that eruption will not occur for many months; insertion of a space-maintaining appliance is indicated. A guideline for predicting emergence is that erupting premolars usually require 4 to 5 months to move through 1 mm of bone as measured on a bite-wing radiograph. Eruption Status of the Succedaneous Tooth is estimated by the amount of root completion (______ erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a permanent successor may be delayed or accelerated after premature loss of a primary ______, depending on the developmental status, bone density of the area, and nature of the primary ______ loss. Very early loss before significant root formation of the permanent successor usually results in delayed eruption timing. Dental Age of Patient is the age calculated according to the last ______ erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

It is estimated by the amount of root completion (tooth erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a permanent successor may be delayed or accelerated after premature loss of a primary tooth, depending on the developmental status, bone density of the area, and nature of the primary tooth loss. Very early loss before significant root formation of the permanent successor usually results in delayed eruption timing. Dental Age of Patient is the age calculated according to the last tooth erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

It is estimated by the amount of root completion (tooth erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a permanent ______ may be delayed or accelerated after premature loss of a primary tooth, depending on the developmental status, bone density of the area, and nature of the primary tooth loss. Very early loss before significant root formation of the permanent ______ usually results in delayed eruption timing. Dental Age of Patient is the age calculated according to the last tooth erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

It is estimated by the amount of root completion (tooth erupts in oral cavity after 2/3rd root formation), regardless of the child’s chronologic age. However, the eruption timing of a permanent successor may be ______ or accelerated after premature loss of a primary tooth, depending on the developmental status, bone density of the area, and nature of the primary tooth loss. Very early loss before significant root formation of the permanent successor usually results in ______ eruption timing. Dental Age of Patient is the age calculated according to the last tooth erupted in oral cavity in normal eruption sequence. This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

This involves recognizing the teeth clinically present in the oral cavity in comparison to ______ eruption charts. The chronologic age of the patient is not as important as the developmental age. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.

This involves recognizing the teeth clinically present in the oral cavity in comparison to dental eruption charts. The chronologic ______ of the patient is not as important as the developmental ______. Delayed eruption timing may alter normal transitional adjustments in arch length, arch width, and arch circumference.