| Upon tooth eruption, mamelon are present but overtime because of mastication and speech, they wear off (abraded and flatten), this is a ______ change | physiologic |
| The presence of ________ allows the dentin and the pulp to defend itself. | odontoblasts |
| If the dentin pulp unit is traumatized, as long as there is continuous _________, the dentin and pulp unit will be able to respond due to the presence of odontoblasts | blood supply and lymphatic drainage |
| _________are located to the periphery of the pulp and are responsible for dentinogenesis | Odontoblasts |
| Different stimuli to the pulp are: | bacterial, mechanical, chemical, thermal |
| Different stimuli to the pulp are: Staphylococcus | Bacterial |
| Different stimuli to the pulp are: Trauma | Mechanical |
| Different stimuli to the pulp are: Fracture | Mechanical |
| Different stimuli to the pulp are: Use sharp burs because dull burs cause more mechanical trauma because it will cause friction | Mechanical |
| Different stimuli to the pulp are: Attrition | Mechanical |
| Different stimuli to the pulp are: abrasion | Mechanical |
| Different stimuli to the pulp are: Cements used in restoration | Chemical |
| Different stimuli to the pulp are: Bonding agents | Chemical |
| Different stimuli to the pulp are: Etchants | Chemical |
| Dentinal tubules that houses the odontoblasts have become occluded with calcified materials | Dentinal Sclerosis |
| Dentin assumes a glassy appearance and becomes translucent | Dentinal Sclerosis |
| Common in apical 3rd of the root and midway between the DEJ and the pulp surface | Dentinal Sclerosis |
| Common in apical 3rd of the root and midway between the DEJ and the pulp surface | Dentinal Sclerosis |
| is dentinal sclerosis a good thing? | yes |
| cause of dentinal sclerosis | Dentinal fluids containing calcium |
| Formed due to the apoptosis of odontoblasts | Physiologic Sclerotic Dentin |
| Occurs after the formation of apical constriction | Physiologic Sclerotic Dentin |
| Physiologic Sclerotic Dentin: The apoptotic bodies suffer from necrosis leading to release of ______ | pyrophosphate and hydrogen phosphate |
| House the odontoblast cells | dentinal tubules |
| (products of apoptosis):dehydrate the dentin | Pyrophosphate |
| (products of apoptosis):demineralize dentin leading to release of calcium ions leading to intratubular mineralization | Hydrogen Phosphate |
| seen in ground sections of teeth | Dead Tracts |
| manifested as black zone by transmitted light and white zone by reflected light | Dead Tracts |
| Dentinal tubules that are open and sufficiently irritated such that their contents(odontoblast cells) coagulate and they die | Dead Tracts |
| dentinal tubules are irritated, their contents (the odontoblast) retract leaving the tubules empty | Dead Tracts |
| tubules are twisted and numbers are reduced, some areas of the dentin not containing tubules anymore | Irregular Dentin |
| forms as response to aging or abnormal irritation | Irregular Dentin |
| Irregular Dentin is sometimes called | adventitious dentin |
| results in the decrease in size of pulp chamber and root canal | Irregular Dentin |
| occurs in elderly persons | Reticular Atrophy of the pulp |
| characterized by large vacuolated spaces in pulp | Reticular Atrophy of the pulp |
| degeneration and disappearance of odontoblasts | Reticular Atrophy of the pulp |
| reduced number of cellular elements | Reticular Atrophy of the pulp |
| may be related to tooth injury, aging, attrition, abrasion, erosion, dentin dysplasia, and ehlers danlos syndrome | Pulp Calcification |
| localized masses of calcification | Pulp Stones |
| linear strands of calcified materials | Diffused Linear Calcification |
| seen in both radicular and coronal pulp | Diffused Linear Calcification |
| Types of Denticles According to Location:lying within pulp tissue | Free denticles |
| Types of Denticles According to Location:not attached to dentinal walls | Attached denticles |
| Types of Denticles According to Location:continuous with dentinal walls | Attached denticles |
| Types of Denticles According to Location:Found within the dentin | Embedded denticles |
| Types of Denticles According to Composition:Localized masses of calcified tissue resembling dentin because of the tubular structure | True denticles |
| Types of Denticles According to Composition:Common in pulp chamber | True denticles |
| Types of Denticles According to Composition:Composed of localized masses of calcified material | False denticles |
| Types of Denticles According to Composition:Nodule appears to be made up of concentric layers of lamellae deposited around a central nidus | False denticles |
| Types of Denticles According to Composition:Referred to as interstitial denticle of surrounded with secondary dentin (irregular dentin) | False denticles |
| Types of Denticles According to Composition:When studied microscopically, it appears larger than true denticles | False denticles |
| Resorption of teeth:Periapical inflammation | External resorption |
| Resorption of teeth:Once the tooth become necrotic and inflamed with an abscess in the periapical area, it may result to resorption of the root | External resorption |
| Resorption of teeth:Reimplantation of teeth | External resorption |
| Resorption of teeth:Some dentists from the past, Instead of doing endodontic treatment inside the oral cavity they extract the tooth, do the endodontic treatment outside of the oral cavity and do it as fast as they could and reimplant the tooth back on to the socket, and splint the tooth to the adjacent teeth in order to hold it in place | External resorption |
| Resorption of teeth:tumors and cysts | External resorption |
| Resorption of teeth:Excessive mechanical or occlusal forces | External resorption |
| Resorption of teeth:Impaction of teeth | External resorption |
| Resorption of teeth:Idiopathic | External resorption |
| Resorption of teeth:Also known as Chronic Perforating Hyperplasia of the pulp, internal granuloma, odontoclastoma, or pink tooth of mummery(name after James mummery) | Internal resorption |
| Resorption of teeth:Appears line a pink-hued area on the crown which represents hyperplastic, vascular pulp tissue filling the resorbed are and showing through the remaining overlying tooth substance | Internal resorption |
| Resorption of teeth:Occur when the osteoclast in the dentin demineralizes the dentin and it is replaced by granulation tissue(color pink) | Internal resorption |
| Resorption of teeth:Possible cause: injury, physical trauma, or caries | Internal resorption |
| Resorption of teeth:Radiographically, has round or ovoid radioluscent area in the central protion of the tooth | Internal resorption |
| Resorption of teeth:Has irregular lacunar variety showing occasional osteoclast or odontoclast thus the term ODONTOCLASTOMA | Internal resorption |
| Occurs due to deposition of excessive amounts of secondary cementum on root surfaces | Hypercementosis |
| caused by;Accelerated elongation of a tooth | Hypercementosis |
| caused by;Inflammation of the tooth | Hypercementosis |
| caused by;Tooth repair | Hypercementosis |
| caused by;Osteitis deformans or Paget's disease of bone | Hypercementosis |
| cementum hyperplasia | Hypercementosis |
| Radiographically, there is thickening and blunting of roots and rounding off of the apex of roots | Hypercementosis |
| Histologically, the cementum is arranged in concentric layers around the root and numerous resting lines | Hypercementosis |
| Small foci of calcified tissue | Cementicles |
| Lie on periodontal ligament of lateral and apical root areas | Cementicles |
| Free, attached, embedded on the cementum | Cementicles |
| They may develop from:Calcification of epithelial rest cells, further enlarges due to deposition of calcium salts in adjacent connective tissues | Cementicles |
| They may develop from:Focal calcification of connective tissue between Sharpey's bundles | Cementicles |
| Occurs as small round or ovoid globules of calcium salts | Sharpey's bundles |
| Calcification of thrombosed capillaries in the periodontal ligament | Sharpey's bundles |
| identify a: | carious dentin |
| identify b: | sclerotic dentin |
| identify c: | dead tracts |
| identify d: | secondary dentin |
| identify e: | dentin |
| identify f: | enamel |
| identify g: | pulp |
| identify | dentinal tubules |
| identify a: | enamel |
| identify b: | dead tracts of dentin |
| identify c: | secondary dentin |
| identify anomaly: | Free denticles |
| identify anomaly: | Attached denticles |
| identify anomaly: | Embedded denticles |
| identify anomaly: | Internal resorption |
| identify anomaly: | Internal resorption |
| identify anomaly: | Hypercementosis |
| identify anomaly: | resorption |
| identify anomaly: | Internal resorption |
| identify anomaly: | external resorption |
