We have located links that may give you full text access.
Maximal Mouth Opening in Infants: A Single-Group Prospective Cohort Study.
Journal of Oral and Maxillofacial Surgery 2024 January 21
BACKGROUND: Detection of mandibular range of motion variations in infants may allow for early diagnosis of pathologic conditions to the temporomandibular joint.
PURPOSE: The purpose of this study was to determine the normal ranges for maximal mouth opening (MMO) in healthy infants under 12 months of age.
STUDY DESIGN, SETTING, SAMPLE: A single-group prospective cohort study of consecutive patients below 12 months of age was conducted in an outpatient setting at the Florida Craniofacial Institute in Tampa, Florida. Patients were excluded if they had trismus, presented with signs of obstructive sleep apnea, suffered a facial fracture, or were diagnosed with a craniofacial syndrome.
PREDICTOR/EXPOSURE/INDEPENDENT VARIABLE: Age (in months) at the time of presentation, measured as a continuous variable.
MAIN OUTCOME VARIABLE(S): The main outcome variable was MMO. This was measured by placing a thumb and forefinger in the infant's mouth and applies slight pressure to encourage MMO. In older infants with erupted central incisors, MMO was measured from the gingival margins.
COVARIATES: The covariates were sex, race, and gestational age.
ANALYSES: Findings were presented as means with 95% confidence intervals. A multivariate linear regression analysis was conducted to evaluate changes in MMO with increasing age.
RESULTS: The sample was composed of 151 infants with a mean age of 5.2 months (95% confidence interval [CI] 4.8 to 5.6), and 33% were female. The mean MMO was 32.1 mm (95% CI 31.5 to 32.7). Results of the linear regression analysis showed MMO to significantly increase with increasing age, increasing at a mean rate of approximately 1 mm per month (coefficient 1.06, 95% CI 0.88 to 1.23, P < .001). In neonates <1 month of age, the mean MMO was 22.0 mm (95% CI 20.4 to 23.6), compared to a mean of 36.7 mm (95% CI 34.8 to 38.6) in infants 11 months of age.
CONCLUSIONS AND RELEVANCE: The results of this study provide normative data of the association of age with MMO, which may be of value in assessing for infants with jaw mobility disorders.
PURPOSE: The purpose of this study was to determine the normal ranges for maximal mouth opening (MMO) in healthy infants under 12 months of age.
STUDY DESIGN, SETTING, SAMPLE: A single-group prospective cohort study of consecutive patients below 12 months of age was conducted in an outpatient setting at the Florida Craniofacial Institute in Tampa, Florida. Patients were excluded if they had trismus, presented with signs of obstructive sleep apnea, suffered a facial fracture, or were diagnosed with a craniofacial syndrome.
PREDICTOR/EXPOSURE/INDEPENDENT VARIABLE: Age (in months) at the time of presentation, measured as a continuous variable.
MAIN OUTCOME VARIABLE(S): The main outcome variable was MMO. This was measured by placing a thumb and forefinger in the infant's mouth and applies slight pressure to encourage MMO. In older infants with erupted central incisors, MMO was measured from the gingival margins.
COVARIATES: The covariates were sex, race, and gestational age.
ANALYSES: Findings were presented as means with 95% confidence intervals. A multivariate linear regression analysis was conducted to evaluate changes in MMO with increasing age.
RESULTS: The sample was composed of 151 infants with a mean age of 5.2 months (95% confidence interval [CI] 4.8 to 5.6), and 33% were female. The mean MMO was 32.1 mm (95% CI 31.5 to 32.7). Results of the linear regression analysis showed MMO to significantly increase with increasing age, increasing at a mean rate of approximately 1 mm per month (coefficient 1.06, 95% CI 0.88 to 1.23, P < .001). In neonates <1 month of age, the mean MMO was 22.0 mm (95% CI 20.4 to 23.6), compared to a mean of 36.7 mm (95% CI 34.8 to 38.6) in infants 11 months of age.
CONCLUSIONS AND RELEVANCE: The results of this study provide normative data of the association of age with MMO, which may be of value in assessing for infants with jaw mobility disorders.
Full text links
Related Resources
Trending Papers
Renin-Angiotensin-Aldosterone System: From History to Practice of a Secular Topic.International Journal of Molecular Sciences 2024 April 5
Albumin: a comprehensive review and practical guideline for clinical use.European Journal of Clinical Pharmacology 2024 April 13
Revascularization Strategy in Myocardial Infarction with Multivessel Disease.Journal of Clinical Medicine 2024 March 27
Clinical practice guidelines on the management of status epilepticus in adults: A systematic review.Epilepsia 2024 April 13
Interstitial Lung Disease: A Review.JAMA 2024 April 23
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app