Open Mouth: Causes & Reasons

Possible Causes for Open Mouth

Autosomal Dominant Mental Retardation Type 1

tented upper lip, open mouth, small chin, dental anomalies; optic nerve hypoplasia; mild myopia; fifth finger clinodactyly; small hands and feet; lumbar lordosis; bulbous [coriell.org]

mouth Gaped jawed appearance Gaped mouthed appearance Slack jawed appearance [ more ] 0000194 Paroxysmal bursts of laughter 0000749 Polyphagia Voracious appetite 0002591 [rarediseases.info.nih.gov]

[…] attention span; short stature; seizures; ataxia; feeding difficulties; infantile hypotonia; constipation; craniofacial manifestations: 15% microcephaly, midface hypoplasia, wide mouth [coriell.org]

Temporomandibular Joint Disorder

opening in TMD and non-TMD subjects, mouth opening and gender, mouth opening and TMD severity). [bmcearnosethroatdisord.biomedcentral.com]

To achieve the maximal open-mouth position, we used a nonferromagnetic bite block. [ajnr.org]

TMJ tomograms in closed and open mouth position were assessed for osseous changes and condyle position. Expected and actual findings were compared. [ncbi.nlm.nih.gov]

Tonsillar Abscess

Examination often reveals: Limited mouth opening (trismus), less than three finger width Unilateral swollen enlarged tonsil with fluctuant swelling extending up to the soft [kidshealthwa.com]

History Fever Sore throat Worsens, becomes unilateral Otalgia - Pain referred to ipsilateral ear "Hot potato" muffled voice Trismus (inability to open mouth) - internal pterygoid [fprmed.com]

Assessment Patients often present with: Severe sore throat Odynophagia (painful swallowing) with drooling Muffled voice ( ‘Hot Potato Voice’) Difficulty opening mouth (trismus [kidshealthwa.com]

Peritonsillar Abscess

Examination often reveals: Limited mouth opening (trismus), less than three finger width Unilateral swollen enlarged tonsil with fluctuant swelling extending up to the soft [kidshealthwa.com]

Anatomy of the oropharynx as seen through the open mouth. Figure 175-2. Horizontal section through the mouth and oropharynx. [accessemergencymedicine.mhmedical.com]

Jaw Fracture

Symptoms of Jaw Dislocation or Fracture Inability to close the mouth normally Difficulty opening the mouth widely Bite that feels crooked or "off" Painful, swollen, or numb [healthcommunities.com]

A broken lower jaw usually causes pain and swelling, changes the way the teeth fit together, and prevents the person from fully opening the mouth. [merckmanuals.com]

[…] in distance during protrusion compared with maximum mouth opening position. [dentalreach.today]

Arthrocentesis

To our knowledge there are no current data on improvements in mouth opening and lateral deviations after these procedures. [ncbi.nlm.nih.gov]

This was consistent with clinical data suggesting that increasing the mouth opening and maximal contra-lateral movement led to better outcomes following arthroscopic lavage [ncbi.nlm.nih.gov]

Both treatments succesfully increased maximum mouth opening and reduced TMJ pain; there were no complications. [ncbi.nlm.nih.gov]

Teardrop Fracture of the Cervical Spine

mouth view Hover on/off image to show/hide findings Tap on/off image to show/hide findings Click image to align with top of page C2 odontoid peg fracture - Open mouth view [radiologymasterclass.co.uk]

Open-mouth odontoid view may reveal bilateral offset distance of >7mm between lateral masses of C1/C2. [ddxof.com]

Demonstrated on the open mouth view by: unilateral C1/C2 odontoid peg joint space widening. lateral masses of C1 overhang the lateral masses of C2. [imageinterpretation.co.uk]

Tonsillitis

Open mouth view of tonsils in a child Tonsillitis. Symptoms, Treatment. Line icons set. [shutterstock.com]

A stiff jaw, difficulty opening the mouth, and pain referred to the ear may be present in varying severity. [entnet.org]

Open-mouth breathing and muffled voice resulting from obstructive tonsillar enlargement. [bmc.org]

Salivary Gland Disorder

They open directly to the floor of the mouth. [sites.google.com]

You may have symptoms such as A bad taste in your mouth Difficulty opening your mouth Dry mouth Pain in your face or mouth Swelling of your face or neck Causes of salivary [medlineplus.gov]

Your salivary glands make saliva - sometimes called spit - and empty it into your mouth through openings called ducts. [icd9data.com]

Angular Cheilitis

Minor Angular Cheilitis Small flaky skin in corners of the mouth Tightness in corners of the mouth Slight discomfort when opening the mouth wide Mild Angular Cheilitis Noticeable [mymurrietadentist.com]

You will also start seeing flaky skin and redness at the corners of the mouth. You feel uncomfortable whenever you try to open your mouth wide. [fallbrooksmiles.com]

It also causes a lot of discomforts to even open and close the mouth and this is the reason why eating and talking also become difficult. [consumerhealthdigest.com]

Mowat-Wilson Syndrome

Many of those with Mowat–Wilson syndrome also have a distinctive open mouthed, smiling expression and friendly personalities.[5] Causes[edit] The disorder is expressed in [en.wikipedia.org]

All patients had typical facial features of MWS such as widely spaced eyes, broad eyebrows with a medial flare, low-hanging columella, prominent or pointed chin, open-mouth [karger.com]

Affected people tend to have a smiling, open-mouthed expression, and they typically have friendly and happy personalities. [mowat-wilson.org]

Ludwig's Angina

Patient is unable to open mouth. FIGURE 2. Tender swelling in patient in illustrative case 2. Patient is unable to open mouth. FIGURE 3. [aafp.org]

Swallowing and opening the mouth become difficult and the tongue may be pushed up against the soft palate. [exodontia.info]

Pain prevented him from opening his mouth ( Figures 2 and 3 ). [aafp.org]

Dental Abscess

or cheeks Sometimes, difficulty opening your mouth or swallowing Eventually the abscess can break open, letting the pus drain. [merckmanuals.com]

[…] the mouth (difficulty or pain upon opening the mouth very wide or when swallowing). [emedicinehealth.com]

Constant tooth pain that gets worse when you chew food Sensitivity to hot or cold food Swelling of your gums Sometimes, fever Sometimes, swelling of your jaw, the floor of your mouth [merckmanuals.com]

Abscess of Salivary Gland

You may have symptoms such as A bad taste in your mouth Difficulty opening your mouth Dry mouth Pain in your face or mouth Swelling of your face or neck Causes of salivary [icdlist.com]

Symptoms include: a constant abnormal or foul taste in your mouth inability to fully open your mouth discomfort or pain when opening your mouth or eating pus in your mouth [healthline.com]

The saliva enters the mouth through ducts that open into the mouth in various places. [iytmed.com]

Temporomandibular Joint Subluxation

It is a chronic disorder and the patient may complain of weakness in the joint while opening the mouth. Complete opening of the mouth is generally associated with pain. [phaa.com]

Oblique sagittal T1-weighted image with the mouth open. [radsource.us]

Direct signs of disk displacement include abnormal orientation in open and closed mouth positions. [radiopaedia.org]

Temporomandibular Joint Ankylosis

At more than 1 year of follow-up, all patients showed improved mouth opening. [ncbi.nlm.nih.gov]

Thirty-one-millimeter mouth opening was reached after the surgery and passive mouth-opening exercises. Patient's routine controls have been continued for 2 years. [ncbi.nlm.nih.gov]

Two patients were admitted to our clinic with complaints of difficulty in opening mouth and joint pain. [ncbi.nlm.nih.gov]

Atlanto-odontoid Dislocation or Fracture

Imaging In addition to anteroposterior and lateral views, radiographs of the upper cervical spine include the open mouth view. [scientificspine.com]

[…] odontoid obtained in a position as neutral as possible AP and open-mouth views: Asymmetric distance between the lateral mass and dens is a common finding Anteriorly displaced [posna.org]

Fracture pattern is best seen on open-mouth odontoid. [boneandspine.com]

Temporomandibular Joint Dislocation

Temporomandibular joint (TMJ) dislocation can occur whenever the mouth is opened wide during upper airway manipulation, even without external force. [ncbi.nlm.nih.gov]

A 20 year-old male patient had involuntary mouth opening after a diabetic coma. [ncbi.nlm.nih.gov]

[…] and open mouth positions (Figure 3). [peertechz.com]

Maxillary Fracture

A broken lower jaw usually causes pain and swelling, changes the way the teeth fit together, and prevents the person from fully opening the mouth. [msdmanuals.com]

Jacks the patients mouth open as far as it will go which can cause respiratory problems. Finger in the mouth, hooked behind the soft palate. [emedsa.org.au]

Breathing problems are a major concern, and other difficulties in the jaw and mouth can manifest in an inability to talk or open your mouth properly. [medic8.com]

Acute Pericoronitis

Patients are unable to open their mouth within the normal range (35 to 55 mm [average is 40 mm]; 3-finger wide). [jcda.ca]

If the airway is not compromised: For adults: Recommend optimal analgesia Do not prescribe antibiotics unless there are signs of spreading infection (e.g. limited mouth opening [madp.sdcep.org.uk]

Patient should be admitted to the Hospital when we see the following symptoms: Fascial Space infections of the mandibular Ramus and Lateral Neck Trismus – inability to open [juniordentist.com]

Qazi-Markouizos Syndrome

Open mouth MedGen UID: 116104 •Concept ID: C0240379 • Finding A facial appearance characterized by a permanently or nearly permanently opened mouth. [ncbi.nlm.nih.gov]

Additional features include narrow and high-arched palate, prominent nasal root, long philtrum, and open mouth with drooling, as well as variably present cryptorchidism, hypertelorism [rarediseases.info.nih.gov]

Abnormality of head or neck Drooling High palate Long philtrum Narrow palate Open mouth Prominent nasal bridge Abnormality of limbs Abnormal palmar dermatoglyphics Tapered [ncbi.nlm.nih.gov]

Cleft of Hard Palate

You don’t see the bone when you open your mouth because it is covered by the mucosa. [verywellhealth.com]

A cleft palate (PAL-it) is when a baby is born with an opening (a cleft) in the roof of the mouth. This leaves a hole between the nose and the mouth. [kidshealth.org]

A cleft lip creates an opening in the upper lip between the mouth and nose and a cleft palate occurs when the roof of the mouth has not joined completely. [healthofchildren.com]

Impacted Wisdom Teeth

[…] when opening your mouth Pain when chewing or biting What can be done for impacted wisdom teeth? [wahroongadental.com.au]

Symptoms of impacted wisdom teeth include: Bad breath Red gums Tender or bleeding gums Headache Jaw stiffness Unpleasant taste in mouth Difficulty opening the mouth If left [familycedarrapidsdentist.com]

Symptoms Symptoms include: Swelling of the gum in the back of your mouth Difficulty opening your jaw Bad breath A bad taste in the mouth Pain when you open your mouth Pain [colgate.com]

Oromandibular Dystonia

MATERIALS AND METHODS: This report describes the long-term results of 18 patients with limited mouth opening (mean maximal mouth opening: 12.2 mm) due to jaw closing dystonia [ncbi.nlm.nih.gov]

The subjects were asked to repeat mouth opening, closing, and left and right lateral mandibular excursions. [ncbi.nlm.nih.gov]

The enlargement impinges on the zygomatic arch during mouth opening. The maximal extent of mouth opening was only 17 mm (b). [sites.google.com]

Marcus-Gunn Syndrome

Figure 1 (left) Right congenital ptosis and left lid in normal position with the mouth closed. (right) Reversal of lid positions with the mouth open. [nature.com]

[…] is open and with ptosis when the mouth is closed. [medical-dictionary.thefreedictionary.com]

The winking response can be triggered by opening the mouth, chewing, sucking, moving the jaw from side-to-side, clenching the teeth or pushing the jaw forward. [contact.org.uk]

Oral Submucous Fibrosis

The effect of the treatment was assessed by evaluating the degree of improvement in mouth opening. [ncbi.nlm.nih.gov]

The median calculated for group C was a 15.0-mm increase in mouth opening and was 20.0 mm in group S. [ncbi.nlm.nih.gov]

[…] centimeters 1week Mouth opening in centimeters 2week Mouth opening in centimeters 3week Mouth opening in centimeters 4 week Mouth opening in centimeters 2 month Mouth opening [ichgcp.net]

Parotid Duct Obstruction

You may have symptoms such as A bad taste in your mouth Difficulty opening your mouth Dry mouth Pain in your face or mouth Swelling of your face or neck Causes of salivary [icdlist.com]

Symptoms A person who has salivary gland cancer may experience: Difficulty in opening mouth completely. Weak facial muscles on one side of the face. [medicalnewstoday.com]

Difficulty in opening your mouth Facial pain Inflammation over the side of your face and upper neck Difficulty in swallowing Swelling below your jaw and on the floor of your [healthool.com]

Zygomatic Fracture

mouth Aspiration risk May discharge if: Simple fracture only No associated injuries No trismus / trouble opening mouth Soft diet Warn pt to return to ED if: Difficult chewing [fprmed.com]

Patients treated with external splint fixation had the largest improvement in mean interincisor mouth opening. [journals.lww.com]

The facial deformity and difficulty in mouth opening were improved after the operation. [e-ceo.org]

Congenital Mandibular Hypoplasia

There was a deviation of the mandible to the right on the complete opening of the mouth [Figure 1]. A deep antegonial notch was palpable on the right side. [mjdrdypu.org]

Shortly following delivery, the baby was noted to have difficulty in opening his mouth with no anterior jaw opening. [ispub.com]

For microstomia (smaller mouth opening), an operation to widen the oral commissure is performed. [westvillageplasticsurgery.com]

Periapical Abscess

[…] the mouth (difficulty or pain upon opening the mouth very wide or when swallowing). [emedicinehealth.com]

The swelling often causes difficulty in opening the mouth and lead to facial asymmetry. [healthhype.com]

With an advanced infection, one can experience other complications such as: nausea, vomiting, fever, chills, and difficulty swallowing, opening the mouth, or breathing. [emedicinehealth.com]