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[[File:Dog teeth occlusion 2.jpg|right|200px|thumb|Occlusal assessment – mandibular incisors occlude on the palatal aspect of the maxillary incisors (known as a scissor bite), the mandibular canine interdigitates half way between the maxillary canine and third incisor, and the premolars interdigitate in a “picking shear” effect.<small>''© Lisa Milella 2013''</small>]]

[[File:Dog teeth occlusion 2.jpg|right|200px|thumb|Occlusal assessment – mandibular incisors occlude on the palatal aspect of the maxillary incisors (known as a scissor bite), the mandibular canine interdigitates half way between the maxillary canine and third incisor, and the premolars interdigitate in a “picking shear” effect.<small>''© Lisa Milella 2013''</small>]]

[[File:Dog incisor occlusion.jpg|right|200px|thumb|Occlusal assessment of the incisors of a dog.<small>''© Lisa Milella 2013''</small>]]

[[File:Dog incisor occlusion.jpg|right|200px|thumb|Occlusal assessment of the incisors of a dog.<small>''© Lisa Milella 2013''</small>]]

Oral examination of a conscious animal is limited to '''visual inspection''' and some '''digital palpation''' only. The aim of the conscious oral examination is to hopefully obtain a '''tentative diagnosis''' and help formulate a treatment plan. The owner must be made aware however that it is only under a [[Oral Examination Under General Anaesthesia|general anaesthetic and full examination]] that the true extent of disease can be evaluated.

Oral examination of a conscious animal is limited to '''visual inspection''' and some '''digital palpation''' only. The aim of the conscious oral examination is to obtain a '''tentative diagnosis''' and help formulate a treatment plan. The owner must be made aware however that it is only under a [[Oral Examination Under General Anaesthesia|general anaesthetic and full examination]] that the true extent of disease can be properly evaluated.

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==Approach==

==Approach==

*[[Eye - Anatomy & Physiology|Eyes]]

*[[Eye - Anatomy & Physiology|Eyes]]

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'''Asymmetry of the head '''may be seen in congenital abnormalities, inflammatory diseases (cellulitis/abscess formation) neoplasia, dislocations, fractures, muscle wastage and nerve damage. The '''jaw movement''' should always be assessed to ensure that the mouth can open and close fully. The '''temporomandibular joints''' should be palpated during jaw movement to check for any crepitation or popping movements. To feel the temporomandibular joints, place three fingers over the joint (positioned rostral to the lateral ear canal, below the zygomatic arch) whilst a second person gently opens the mouth. A '''unilateral exophthalmia''' may result from a retrobulbar or orbital abscess. It is also useful to apply gentle pressure to the eye to assess pressure if a lesion in this area is suspected.

'''Asymmetry of the head '''may be seen in congenital abnormalities, inflammatory diseases (cellulitis/abscess formation), neoplasia, dislocations, fractures, muscle wastage and nerve damage. '''Jaw movement''' should always be assessed to ensure that the mouth can open and close fully. The '''temporomandibular joints''' should be palpated during jaw movement to check for any crepitation or popping movements. To feel the temporomandibular joints, place three fingers over the joint (positioned rostral to the lateral ear canal, below the zygomatic arch) whilst a second person gently opens the mouth. A '''unilateral exophthalmia''' may result from a retrobulbar or orbital abscess. It is also useful to apply gentle pressure to the eye to assess pressure if a lesion in this area is suspected.

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The mouth is first examined by '''gently holding the jaws closed and retracting the [[lips]]''' (do not pull on the fur to retract lips) to look at the soft tissues and buccal aspects of the teeth. '''Check the lip''' for clefts, lacerations, inflammation, ulcerations, or swellings before lifting the lip to examine the soft tissues and [[:Category:Teeth - Anatomy & Physiology|teeth]]. Apart from colour and texture of the '''mucous membranes''', look for evidence of a potential bleeding problem ([[Haemorrhage#Petechiae|petechiation]], [[Haemorrhage#Purpura|purpura]], [[Haemorrhage#Ecchymoses|ecchymoses]]). In addition, look for vesicle formation and ulceration, which could indicate a vesiculo-bullous disorder, e.g. [[pemphigus]], pemphigoid. It is useful to [[:Category:Teeth - Anatomy & Physiology|'''count the teeth''']] to ensure that a tooth is not absent without reason. Obvious dental pathology (tooth fracture, [[Dental Indices and Criteria#Gingival Recession|gingival recession]], advanced [[Dental Indices and Criteria#Furcation Involvement|furcation exposure]]) can also be identified. It is useful to compare left and right sides of the mouth – animals in pain may be chewing on one side only, resulting in less plaque and calculus on the side of the mouth that is being used.

The mouth is first examined by '''gently holding the jaws closed and retracting the [[lips]]''' (do not pull on the fur to retract lips) to look at the soft tissues and buccal aspects of the teeth. '''Check the lip''' for clefts, lacerations, inflammation, ulcerations, or swellings before lifting the lip to examine the soft tissues and [[:Category:Teeth - Anatomy & Physiology|teeth]]. Apart from colour and texture of the '''mucous membranes''', look for evidence of a potential bleeding problem ([[Haemorrhage#Petechiae|petechiation]], [[Haemorrhage#Purpura|purpura]], [[Haemorrhage#Ecchymoses|ecchymoses]]). In addition, look for vesicle formation and ulceration, which could indicate a vesiculo-bullous disorder, e.g. [[pemphigus]], pemphigoid. It is useful to [[:Category:Teeth - Anatomy & Physiology|'''count the teeth''']] to ensure that a tooth is not absent without reason. Obvious dental pathology (tooth fracture, [[Dental Indices and Criteria#Gingival Recession|gingival recession]], advanced [[Dental Indices and Criteria#Furcation Involvement|furcation exposure]]) can also be identified. It is useful to compare left and right sides of the mouth – animals in pain may be chewing on one side only, resulting in less plaque and calculus on the side of the mouth that is being used.

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With the [[lips]] gently retracted and the mouth closed, this is the optimal time to '''evaluate occlusion'''.

With the [[lips]] gently retracted and the mouth closed, this is the optimal time to '''evaluate occlusion'''.

6-point checklist for dental occlusion

6-point checklist for dental occlusion:

#'''Head symmetry'''

#'''Head symmetry'''

#'''Incisor relationship''' (the lower incisors usually occlude on the palatal aspect of the upper incisors in a mesocephalic [[Skull and Facial Muscles - Anatomy & Physiology|skull]] type). This is referred to as a scissor bite.

#'''Incisor relationship''' (the lower incisors usually occlude on the palatal aspect of the upper incisors in a mesocephalic [[Skull and Facial Muscles - Anatomy & Physiology|skull]] type). This is referred to as a scissor bite.

Finally, the animal is encouraged to open its mouth. One method, useful for both dogs and cats, is to approach the animal from the side, one hand is placed over the muzzle and the [[lips]] are gently pressed into the oral cavity, while tilting the head slightly upwards. A finger from the other hand is placed on the lower incisors and gentle pressure is exerted. Do not use the fur under the [[Skull and Facial Muscles - Anatomy & Physiology#Mandible (mandibula)|mandible]] to try to pull the jaw down. Most animals allow at least a cursory inspection of the oral cavity once the jaws have been opened. The mucous membranes of the [[Hard Palate|hard palate]] and the [[Oropharynx - Anatomy & Physiology|oropharynx]] ([[Soft Palate|soft palate]], palatoglossal arch, tonsillary crypts, [[Tonsils - Anatomy & Physiology|tonsils]] and fauces) can be assessed. The occlusal surfaces of the molar teeth as well as the lingual and palatal surfaces of the teeth can be briefly evaluated.

Finally, the animal is encouraged to open its mouth. One method, useful for both dogs and cats, is to approach the animal from the side, one hand is placed over the muzzle and the [[lips]] are gently pressed into the oral cavity, while tilting the head slightly upwards. A finger from the other hand is placed on the lower incisors and gentle pressure is exerted. Do not use the fur under the [[Skull and Facial Muscles - Anatomy & Physiology#Mandible (mandibula)|mandible]] to try to pull the jaw down. Most animals allow at least a cursory inspection of the oral cavity once the jaws have been opened. The mucous membranes of the [[Hard Palate|hard palate]] and the [[Oropharynx - Anatomy & Physiology|oropharynx]] ([[Soft Palate|soft palate]], palatoglossal arch, tonsillary crypts, [[Tonsils - Anatomy & Physiology|tonsils]] and fauces) can be assessed. The occlusal surfaces of the molar teeth as well as the lingual and palatal surfaces of the teeth can be briefly evaluated.

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Some animals may be uncomfortable and have painful areas in the mouth, limiting the conscious examination. Difficulty to examine the mouth may be an indication to sedate or [[Oral Examination Under General Anaesthesia|anaesthetize the patient]] to examine the mouth fully.

Some animals may be uncomfortable and have painful areas in the mouth, limiting conscious examination. Difficulty examining the mouth may be an indication to sedate or [[Oral Examination Under General Anaesthesia|anaesthetize the patient]] to examine the mouth fully.

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==Limitations of conscious examination==

==Limitations of Conscious Examination==

#Pain may make the animal less co-operative

#Pain may make the animal less co-operative

#Not all surfaces of the tooth are easily visible during the conscious examination

#Not all surfaces of the tooth are easily visible during conscious examination

#The periodontal status cannot be assessed in a conscious patient as the area below the [[Enamel Organ#Crown|crown]]/under the gum margin cannot be assessed.

#The periodontal status cannot be assessed in a conscious patient as the area below the [[Enamel Organ#Crown|crown]]/under the gum margin cannot be assessed.

#Sometimes pathology can be identified but the full extent of the pathology cannot be assessed until further diagnostic tests, such as [[Intra-Oral Radiography|intra-oral radiographs]] have been taken. Eg. [[FORL|Feline odontoclastic resorptive lesions]]

#Sometimes pathology can be identified but the full extent of the pathology cannot be assessed until further diagnostic tests, such as [[Intra-Oral Radiography|intra-oral radiographs]] have been taken. Eg. [[FORL|Feline odontoclastic resorptive lesions]]

[[Category:Oral Examination]]

[[Category:Oral Examination]]

[[Category:To Do - Dentistry questions]]

[[Category:To Do - Dentistry questions]]

[[Category:To Do - Dentistry preMars]]

[[Category:To Do - Mars Check]]