Effect Of Adenotonsillar Hypertrophy On Maxillofacial Development In Children

Objective:Through the analysis and comparison of cephalometric measurements of children with normal nasal breathing 、 adenoid hypertrophy or adenotonsillar hypertrophy,study and compare the effect of mouth-breathing caused by adenotonsillar hypertrophy or adenotonsillar hypertrophy on maxillofacial development in children,provide theory basis for early clinical intervention.Methods: the medical data of 73 mouth-breathing children(ages from 3 to 7)asked for diagnoses and treatments in otorhinolaryngology of the first hospital affiliated to Da Lian Medical University from November 2015 to November 2016 were analyzed retrospectively.The 73 mouth-breathing children with adenoid hypertrophy(a/n≥ 0.71)were analyzed as mouth-breathing(MB)group;Using the technology of cephalometric measurement and method of Brodsky-Kock indexing tonsil,According to whether the tonsil is 3 or 4 degrees,73 MB children with adenoid hypertrophy(a/n≥ 0.71)were divided into group A(adenoid hypertrophy group)38 cases and group B(adenotonsillar hypertrophy group)35 cases.At the same time,choose 43 healthy nasal breathing children(a/n≤0.60;tonsil degrees≤2degrees)aged from 3 to 7 of the same gender and region distribution as control group.Input lateral cephalometric radiography into the computer,using the computer measuring software,selecting the commonly used bone measurement indexes which could better reflect the craniofacial morphology,including SNA angle、SNB angle、 MP-FH angle、NP-FH angle、Y angle、OP-FH angle 、 UI-SN angle 、 LI-MP angle and upper and lower incisor angle.lateral cephalometric radiography of all the objects studied were pointed and measured by the same physician.Input the data of the research objects into Computer,use SPSS17.0 statistical software for statistical analysis of relevant data.Using SPSS17.0 statistical software for Statistical analysis of the correlated cephalometric data.Results:1、study of the general situation of the objects.There were no significant differences in gender,age,height and weight between the MB group and the control group,and between the 3 groups(A group、B group and the control group).2、Comparison of cephalometric measurements between MB group and the control group.compared with the control group,among the cephalometric measurements of Mouth breathing group,MP-FH Angle、Y axis Angle were increased(P < 0.01),NP-FH Angle decreased(P < 0.01),and the others were not statistically significant difference.3、Comparison of cephalometric measurements between the 3 groups(A group、B group and the control group).The statistical results showed that there was no significant difference between the 3 groups(A group、B group and the control group)in the SNA angle and LI-MP angle.There was no significant difference between the group B and the control group.Compared with control group,the SNB Angle、Angle of NP-FH、UI-SN Angle were smaller,MP-FH Angle、Y axis Angle were larger in Group A(adenoid hypertrophy group).compared with group A,the SNB Angle、 Angle of NP-FH、UI-SN Angle were larger,OP-FH Angle、the tooth Angle were smaller in Group B(adenotonsillar hypertrophy group).There was no statistically significant difference between the rest groups.Conclusion: 1 、 Long term mouth breathing has an impact on the development of the maxillofacial in children,and mainly affect the location and morphology of the mandible.2、Adenoid hypertrophy can affect the development of the maxillofacial in children,leading to convex long maxillofacial bony deformity.3、There was no difference on the maxillofacial morphology between children with adenotonsillar hypertrophy and normal children.4、Adenoid hypertrophy or adenotonsillar hypertrophy has no effect on the developments of maxillary and the lower incisor in children.