!Teeth - Dentin & Cementum
!!Anatomy
Dentin is a mineralized ((Musculoskeletal - Connective Tissue|connective tissue)) with an organic matrix of collagenous proteins. Along with ((Digestive - Teeth - Enamel|enamel)), cementum, and pulp it is one of the four major components of teeth. Usually, it is covered by enamel on the crown and cementum on the root and surrounds the entire pulp. Yellow in appearance, it greatly affects the color of a tooth due to the translucency of enamel. Dentin, which is less mineralized and less brittle than enamel, is necessary for the support of enamel. Dentin consists of microscopic channels, called __dentinal tubules__, which radiate outward through the dentin from the pulp to the exterior cementum or enamel border. These tubules contain fluid and cellular structures. As a result, dentin has a degree of __permeability__ which can increase the ((Nervous - Sensory Innervation|sensation)) of pain and the rate of tooth decay.

The formation of dentin, known as dentinogenesis, begins prior to the formation of enamel and is initiated by theodontoblasts of the pulp. Unlike enamel, dentin continues to form throughout life and can be initiated in response to stimuli, such as tooth decay or attrition. There are different types of dentin, differentiated by appearance and stage of development. Primary dentin forms most of the tooth. Secondary dentin develops after root formation is complete and forms much more slowly than primary dentin. Tertiary dentin forms as a biological response to stimuli.

Cementum consists of mineralized ((Musculoskeletal - Connective Tissue|collagen fibres)) and cementocytes, which derive embryologically from mesenchymal cells of the periodontium, which covers the roots and matches the ((Musculoskeletal - Periosteum (Visceral Fascia)|periosteum)) of bones.

!!Brain
!!!Relay
__Cerebral Medulla__ ( - / + ) fronto-medial
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!!Mind
!!!Theme
Self Devaluation concerning biting, not being able to bite or be pro-active

!!!Emotions, Thoughts
__Frustration__
*I can´t bite! 
*I can´t eat this! 
*My teeth are no good! 
*I can´t get this/him into my fangs. 
*I can´t crush that/him although I want to.

!!!META-Meaning
*Now, I use my teeth with confidence for their appropriate function. 
*I can do that! 
*It is ok to accept help for my teeth. 
*Biting is good for me!

!!Organ
!!!Stress Phase Symptoms
The dentin is locally broken down by a carious and __decalcifying process__ which may spread from the outside in or from the inside out along the dentin tubules. As this process is __not painful__, it is usually diagnosed by chance in a regular dentist visit, or when it leads to the __breaking off of a tooth part__.

!!!Regeneration Phase A
Hole(s) are filled or covered by __tertiary dentin__ secreted by odontoblasts. Due to the swelling that leads to irritation of the nerves in the pulpa, this is usually causing __pain__. An osteomyelitis or __abscess__ with pus is sign of bacteria and lymphocytes clearing and incapsulating necrotic tissue. 

!!!Regeneration Phase B
Bacterial activity triggers solidification of the callus in the tooth hole and increase of __mineralization__ leading to sclerotic dentin, a condition with decreased pain. Also, tartar (__odontolith__) is built in this phase.

!!!Biological Meaning
Due to the new secretion and calcification in regeneration phase, the tertiary dentin gets thickened and hardened to prevent further affection.

!!Social
!!!Examples
*A young boy gets beaten by his parents. He cannot defend himself against his more powerful parents.
*A young woman argues vigorously against her partner. She feels herself totally inferior to him, thinking that she has no chance, but she would most like to bite him.
*The client has recurring conflicts not being able to make a stand against authorities. In a checkup at the dentist, a big soft area is found in the jawbone beneath the molars. (Klapp)
*A woman experienced that parts of teeth broke off when eating, and hence avoids biting powerfully. She decides to get crowns on those teeth to avoid worrying and further bite-conflicts. (Klapp)

!!Additional Information
A stress reaction of the dentin is often triggered by a process in the teeth enamel, which temporarily leads to the condition of not being capable of biting “as usual” because of the weakened structure in the stress phase of “not being allowed to bite”, or because of pain in the regeneration phase of that conflict.

!!!Constellations
__Biting-Megalomania__ (both hemispheres affected): Convinced to resolve problems by being pro-active and "sharp"

!!!Differential Diagnosis
__Teeth - ((Digestive - Teeth - Enamel|Enamel))__ (Cerebral Cortex, -/+): caries possibly with pain and local decay of enamel in stress phase (biting prevented), recalcification in regeneration phase.

__Gum (Gingiva):__
__((Digestive - Mouth, Tongue - Ectodermal Mucosa|superficial mouth mucosa))__ (Cerebral Cortex, -/+) Stress (mouth contact): Hyperesthesia gum recession
__((Digestive - Mouth, Tongue - Endodermal Mucosa|profound mouth mucosa))__ (Brain Stem, +/-) Stress (assimilation): enhanced salivation and odontolithiasis, Regeneration: purulent abscess, mycobacteria /fungi (Soor)

__Jaw ((Musculoskeletal - Bones|bone)) & periodontium__ (Cerebral Medulla, -/+) Stress (instability): Decalcification, periodontosis (gum recession) and tooth exfoliation; Regeneration: inflammation (periodontitis), recalcification, odontolithiasis. 
