Interrelation between Oral Health Status and Autism: A Case Report

Children suffering from autism are most often unable to collaborate to doctor during dental procedures, which results in restricted access to dental services. The application of antiepileptic drugs, associated to the main common health disorder, can provoke initiation or progression of gingival hyperplasia. The aim of our study is to investigate the interrelation between the oral health status and condition of autism in child’s age in the context of a case report. The individual dental status registration ascertains a clinical finding of totally caries-resistant mixed dentition. It concerns a patient with very good personal oral hygiene. There are no signs of clinical manifestation of gingival inflammation. We accentuate on the fact that maintenance of proper common health status and oral health, respectively high quality of life, can be provided and ensured for children suffering from autistic spectrum disorder only when parents, dental medicine doctors and physicians of different professional scopes combine their efforts and collaborate with each other.


Introduction
The autistic spectrum disorder (ASD) is related to disabilities of proper communication and lack of adequate social relationships [1]. Autism is characterized as a disease of the Autism Spectrum Disorder (ASD) [2][3][4].
The distribution of autism is not associated to the racial traits, social-economic conditions of living and educational level of affected individuals and their families. Classic autism is related to diminished rate of language development, strict adherence to routines, hyperactivity, disability of concentration and attention [2][3][4].
Oral manifestations of autism are associated to clinical findings of erosion because of regurgitation, improper oral hygiene status, bruxism, tongue thrusting [2][3][4]. Children suffering from autism are most often unable to collaborate to doctor during dental procedures, which results in restricted access to dental services [5,6]. There is a considerable risk of seizure attacks, especially provoked during dental treatment of such patients. This is one of the most essential reasons for such children to accept antiepileptic drugs (AEDs), surgical treatment or vagus nerve stimulation [7]. The application of antiepileptic drugs can provoke initiation or progression of gingival hyperplasia (GH) [7,8]. The state of gingival hyperplasia is related to disturbed balance and control of the growth of gingival epithelium and sub-epithelial connective tissue. This condition of overgrowth of gingiva stimulates the process of pathological accumulation of dental plaque, accompanied by bleeding in the region of gingival sulcus and interdental papillae. The inflammatory process hinders the procedures of maintenance of full of value oral hygiene level, leading to deterioration of oral health status [7,[9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. These adverse effects of antiepileptic drugs' usage can be overcome by performance of complex professional and individual oral hygiene cares. For the purposes of compensation of the negative consequences of antiepileptic drugs' application, patients of child's age and parents must participate in programs of prevention and educational sessions for promotion of oral health [7].

Clinical Case
The current study has been performed to assess the oral health status of a child suffering from autism. We investigate the personal oral hygiene level in the role of protective factor against tooth decay and gingival inflammation. Based on scientific literature concerning various methods of evaluation of oral health in patients going through antiepileptic therapy, especially in condition of autism [27][28][29], we have accentuated on registration of these indicators: a.
Plaque index related to illustration of the presence of dental plaque and its quantity on teeth surfaces, corresponding to the personal oral hygiene level → namely PLI Silness-Lȍe;

Advances in Dentistry & Oral Health
b.
Index of gingival inflammation regarding alteration of gingival tissue color, presence or absence of edema and/or bleeding → namely GI Lȍe-Silness; c.
Depth of probing, with measurement of the values of gingival pockets at medial, central and distal areas of vestibular and oral surfaces around each tooth; d.
Assessment of the frequency of oral hygiene procedures, especially tooth brushing with tooth pastes appropriate to child's age characteristics.
On Figure 1 we illustrate the interrelations between autism spectrum disorder, antiepileptic drugs and oral health. We represent a clinical case of a child at the age of 5 years and 1 month suffering from autism, with anamnestic data for epileptic seizures. Epileptic seizures' attacks have been controlled by acceptance of Valproic acid-containing medicine of Convulex and Neurotop, with the basic ingredient of Carbamazepine.  Legend: X-missing tooth; H-healthy/intact tooth; ↑-tooth in prefunctional eruptive phase.
According to the value of PLI=0, 54, it concerns a patient with very good personal oral hygiene. There are no signs of clinical manifestation of gingival inflammation, no pathological alteration of the color or consistency of gingival tissue, no edema, no locations of bleeding, none anamnestic data of pain symptoms. The clinical situation of gingival health is ascertained by the gingival index equal to zero, GI=0. We have recorded normal depth of gingival sulcus in the range between 0, 5 and 3mm.
Parents accentuate on the fact that they are concentrating their efforts for ensuring adequate oral health cares for their child by regular performance of tooth brushing procedures twice per day, morning and evening before going to bed. The toothpastes applied are fluoride containing, with precise dosage of fluorides according to the age of the child. The usage of "pea size" amount of fluoride tooth paste containing 500ppm F, as a form of exogenous fluoride prophylaxis, provides optimal prophylactic effect for hard teeth structures and anti-plaque accumulation effect for maintaining healthy gingival tissues, in condition of no risk of fluorosis.
On Figure 3 we illustrate the interrelations between the oral health status of children suffering from common health disorders and various environmental factors.

Discussion
The absence of carious lesions in the child participating in that case report can be explained by the strict control exercised by parents regarding the specifics of the dietary regime. The limited consumption of sugar-containing foods and drinks only once per day during the main meal, and not immediately before going to bed, ensures stability of the pH level in saliva. The considerably decreased frequency of disaccharides' intake correlates to minimized episodes of pH value equal to 5, 5 or lower, resulting in irreversible demineralization of hard teeth tissues [30]. Besides following precisely balanced principles of alimentary prophylaxis, parents of children with established diagnosis of autism must concentrate their efforts on supervision of the regularity and strictness of tooth brushing and additional oral hygiene measures appropriate for child's age [30]. The individual oral hygiene habits of the representative of that case report correspond to the significance of regular preventive measures combined with proper dietary habits [31].
Brodie et al. [32,33] devote their research on Valproic acid as an antiepileptic drug implemented for the purpose of proper control of various types of epilepsy. Eeg-Olofsson et al. [34] have not established any negative impact of valproic acid upon the periodontal apparatus of teeth in ten children with mixed and permanent dentition suffering from epilepsy. Irregular reciprocity has been ascertained between susceptibility of gingiva to valproic acid and patient's age. Ogunbodede et al. [35] established that 33.3% of patients taking only phenytoin are affected by pathological overgrowth of gingival tissue, progressing into gingival hyperplasia. The ratio of epileptic patients characterized with the state of gingival hyperplasia is elevated up to 83.3 %, regarding these accepting combination of phenytoin with phenobarbitone. Based on profound investigations the scientific team proved that phenobarbitone has additive effect to phenytoin upon gingival enlargement. And in condition of monotherapy with phenobarbitone there is no clinical manifestation of gingival hyperplasia. The researchers Gurbuz and Tan have recorded the state of gingival hyperplasia in none of the investigated patients taking carbamazepine, in 16% of patients accepting phenobarbitone and in 42% of the participants into the study going through valproic acid-based therapy [24]. The active substances of valproic acid and carbamazepine exercise deteriorative influence upon neutrophils of patients resulting in disturbance of the frequency of the process of phagocytosis. The investigation reveals that in epileptic patients accepting combination of valproic acid and other antiepileptic drugs the buffer capacity of saliva is under critical levels, combined with considerable increase of the concentration of salivary protective enzyme of lysozyme [36]. The enhancement of the functionality of lysozyme as a fundamental ingredient of unstimulated saliva correlates to scientifically based evidence represented by Smith et al. [37] High levels of salivary lysozyme can be associated to lower rate of caries incidence in primary, mixed and permanent dentition of patients going through complex antiepileptic therapy. The caries-resistance of the child suffering from autism with accompanying condition of epileptic attacks, represented in our clinical case report, can be interpreted into the context of these studies' results.
Taking into consideration the fact that we cannot rely on full of value collaboration of children suffering from autism during dental procedures, there are fundamental rules to be strictly followed related to performance of efficient therapeutic cares [2][3][4] (Figure 4).

Conclusion
In conclusion, on Figure 5 we accentuate on the fact that maintenance of proper common health status and oral health, respectively high quality of life, can be provided and ensured for children suffering from autistic spectrum disorder only when parents, dental medicine doctors and physicians of different professional scopes combine their efforts and collaborate with each other.