Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia

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Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia
SAUDI DENTAL JOURNAL                 SAUDI DENTAL JOURNAL                  SAUDI DENTAL JOURNAL             132

  Oral health status, dental needs, habits and behavioral
       attitude towards dental treatment of a group
        of autistic children in Riyadh, Saudi Arabia
                          Ebtissam Zakaria Murshid, BDS, MS, MPH, DrPH

The purpose of the study was to obtain baseline information regarding the oral health status, dental needs, habits and
behavioral attitudes towards dental treatment of a group of autistic children attending a rehabilitation center in Riyadh,
Saudi Arabia. A self-administered questionnaire in Arabic was completed by the parents of each child involved and
was reviewed with the children’s trainers. Extra-oral and intra-oral examinations were performed in 20 autistic
children with a mean age of 9.6 years. The parents of all the 20 children (16 males and 4 females) responded to the
questionnaires. Extra-oral examination showed that 14 (70%) children showed different signs of trauma due to habits
and also expression of temporary madness. Intra-oral assessment showed poor oral hygiene (80%) and generalized
gingiva. The mean DMFT score was 1.6 and 7.25, and mean dmft score for males and females was 3.62 and 1.0,
respectively. Regarding the behavioral attitude to dental treatment, 56.25% of the children were definitely negative,
31.25% were negatively behaved and only 12.5 % reacted positively towards the dental examination. The following
conclusions were made: Oral health status of the examined autistic children did not show statistically significant
differences from the international groups reported in previous studies. Autistic children in the present study showed
similar behavior and habits as other autistic children around the world.

                 INTRODUCTION                                  of such brain abnormalities might be due
                                                               to early prenatal insult such as
Autism, autistic syndrome (AS), autistic                       chromosomal abnormalities, intrauterine
disorder (AD), infantile autism (IA) and                       viral infections, and metabolic disorders
childhood autism (CA) are different terms                      suspected to play a role in the
given to the same condition of a                               pathogenesis of this syndrome.4
developmental disability. The condition                           In a recent epidemiologic study
was first described in 1943 by Leo Kanner,                     conducted in the United States, the
an American child psychiatrist.1,2 Kanner                      findings show a tremendous increase in
reported his observations of a group of                        the prevalence of autism between the end
children as they expressed impaired social                     of the 1980’s and the beginning of the
and behavioral interactions, verbal and                        1990’s (1987-1994). The authors of the
nonverbal communication deficiencies,                          study could not determine if the observed
and developmental retardation.1-3 Later,                       increase in autism was due to
Kanner’s observations were identified as                       improvements in detection, changing and
an organic disorder characterized                              broadening of diagnostic criteria or a true
by abnormalities in the brain structure                        increase      in   prevalence. 6    Other
and function, especially the limbic                            epidemiological studies of autism reported
system and cerebellum. 3-5 Recently,                           that the main age at which autism was
researchers reported that the etiology                         diagnosed was 44 months, with a wide
                                                               variation of the expression of symptoms
Received 1 April 2005; Revised 13 June 2005
Accepted 20 August 2005                                        Address reprint requests to :
Assistant Professor                                            Ebtissam Zakaria Murshid
Department of Preventive Dental Sciences                       P.O. Box 60169, Riyadh 11545, KSA
College of Dentisty, King Saud University, Riyadh, KSA         Email : emurshid@ksu.edu.sa

                            Saudi Dental Journal, Volume 17, No. 3, September - December 2005
Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia
133                                                    ORAL HEALTH STATUS AND BEHAVIOURAL ATTITUDE

among different individuals.3,7,8 Autistic                   and distribution of Saudi autistic children
children may express mental retardation,                     is available in brochures and flyers
abnormal emotional, social and linguistic                    published      by    various      autistic
development, poor muscle tone, poor                          rehabilitation centers and the Saudi
coordination, as well as visual and hearing                  Autistic Society which was established in
impairment. 3,9,10 Klein and other                           2003. These brochures provide definitions
researchers reported that males are four                     and some medical characteristics of this
to five times affected more than females,                    group of children with no information
but more severe symptoms are exhibited                       about their oral health status or dental
in females.3, 8, 11-13                                       needs. Recently, Yazbak reported that the
    As part of the multiple unknown                          estimated number of autistic children in
developmental abnormalities, several                         Saudi Arabia was 42,500.22 However, no
studies reported that up to 70% of the                       reference was made as to how this
children diagnosed with autism practice                      estimate was obtained. The purpose of
self injurious behavior (SIB) at some stage                  this study was to obtain baseline
in their lives. This behavior is expressed                   information regarding the oral health
as a deliberate harm to the body that may                    status, dental needs, habits, and
lead to serious injuries without suicidal                    behavioral attitudes to dental treatment
intent. This repetitive behavior is more                     of a group of children diagnosed with
common in females, mentally and                              autism in a non-profit autistic
psychologically impaired individuals.14 It                   rehabilitation center in Riyadh, Saudi
usually affects the head and neck                            Arabia.
region.13, 15
    Oral health and dental needs of                               METHODS AND MATERIALS
children with autism have been evaluated
by very few investigators. The studies                           This study was conducted in the first
conducted on this topic reported no                          center established in 1999 in Riyadh, the
statistically significant differences in the                 capital of Saudi Arabia, as indicated by the
prevalence of caries, fillings, gingivitis                   Saudi Autistic Society’s official website.
and degree of oral hygiene in comparison                     In Riyadh, there are about six non-profit
with non-autistic individuals8, 16-18 and                    centers that accept and offer
even a lower incidence of caries in some                     rehabilitation services for children with
of the reports.19, 20                                        autism. The center offers an intensive
    Because of the widely aberrant                           rehabilitation program only for children
behavior and communication impairment                        diagnosed with autism and has 20
of children with autism, every child                         registered children. All the children (16
requires special behavior management                         males and 4 females) were included in the
with a great deal of patience and                            study. All the children had been previously
confidence. 8,17,21 The use of Tell-Show-                    examined and diagnosed medically as
Feel-Do technique with sedation or                           autistic patients according to the center’s
nitrous oxide was recommended in the                         medical records. A self-administered
literature to manage and treat the autistic                  questionnaire in Arabic was sent to 5 families
child in routine dental settings.21                          to pre-test the reliability of the questions. The
    An extensive review of the literature                    questionnaires included demographic
revealed no specific numbers regarding                       information (name, age and gender of the
diagnosed cases of autistic children in                      child), child’s oral hygiene practice, previous
Saudi Arabia. Most of the estimated                          dental experience, behavior during dental
infor m a t i o n a b o u t t h e p r e v a l e n c e        examination and treatment, and habits

                          Saudi Dental Journal, Volume 17, No. 3, September - December 2005
Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia
MURSHID                                                                                         134

including self injurious behavior. The                  (e.g. ulcer, abscess). Oral hygiene was
habits and behavioral patterns of every                 recorded as good, fair or poor according to
child were reviewed with the children’s                 the Simplified Oral Hygiene Index (OHI-
trainer. Every family was assured of the                S).25
confidentiality of the collected data and                   The collected data were entered in the
that the resultant information would be                 computer using Statistical Package for
used only for the research purposes.                    Social Sciences (SPSS version 10)
    Files of all the children were reviewed             software for frequency distribution of all
and the medical status of each child was                variables.
recorded in a special clinical examination                  A report of each child’s oral health and
form designed for this study. On the day                dental needs as well as any special
of examination, each child accompanied                  instructions to improve the oral hygiene
by his/her trainer was brought to the                   of the child was sent to the parents.
designated examination room and was
informed by his/her trainers about the
                                                                             RESULTS
procedure, and asked to cooperate with the
examiner. The children were seated on
an adjustable office chair or laid down flat               The parents of all the 20 children, 16
on an exercise mattress depending on                    (80%) males and 4 (20%) females with a
                                                        mean age of 9.6 years participated in the
their physical condition.
                                                        study. Results of the extra oral
    During the examination procedure, the               assessment, types of habits, trauma and
“Tell–Show–Feel and Do” technique was                   injuries as well as the given reasons are
used with all the children. Extra-oral                  shown in Table 1. Out of the 20 examined
examination included any scars, trauma                  children, 14 (70%) showed signs of
to the head and neck, hands and fingers.                trauma. The injuries varied from
Intra-oral examination of the soft and hard             scratches to one case of burned fingers.
tissues was done under flash light and                  Five males and one female had no signs
regular room light using disposable gloves,             of trauma or injuries in the examined
mouth mirror, explorer and sterilized                   areas (Table 1).
gauze to clean and dry the teeth. Sound,                   Injuries to the head region were
decayed, missing and filled teeth were                  recorded in 6 (30%) of the children (4 males
recorded in the dental chart following the              and 2 females) and it was due to self head
WHO criteria.23                                         banging on the walls and furniture, and
    The gingival status was evaluated                   hitting by bare hands or with objects
according to the gingival index of Loe and              during stressful moments or as
Silness (1963) which varied between mild                expression of temporary madness and
(slight changes in color and texture) to                discomfort. Three other children (15%)
moderate gingivitis (redness, edema, and                showed signs of scratches on the sides of
bleeding on pressure).24 No probing or                  their faces due to head banging and hair
pocket depth measurement was conducted                  pulling.
to evaluate the periodontal health due to                  The most common trauma was recorded
the difficult behavior of the children.                 in the hands and fingers, as 15 (75%) of
Gingival status was recorded as                         the children (11 males and 4 females)
generalized or localized gingival                       showed different degrees of injuries. The
inflammation depending on the amount                    reasons given were repeated self biting
of gingival redness and bleeding during                 habit and touching hot beverages or food.
the examination. The examination also                   A 10-year old male had shown signs of
included any intra-oral soft tissue findings            localized gum recession in the upper

                     Saudi Dental Journal, Volume 17, No. 3, September - December 2005
Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia
135                                                ORAL HEALTH STATUS AND BEHAVIOURAL ATTITUDE

                                                         children showed that, 16 (80%) of the
                                                         children (14 males and 2 females) had poor
                                                         oral hygiene. Only 4 (20%) of the children
                                                         (2 females and 2 males) showed fair oral
                                                         hygiene and none had good oral hygiene
                                                         (Table 2).
                                                            The gingival status was evaluated and
                                                         the results showed that all the children
                                                         had mild generalized gingivitis. Four of the
                                                         males and two of the females showed
                                                         gingival dryness and redness in the upper
                                                         front areas which could be due to mouth
                                                         breathing and/or open bite (Table 2).
                                                            Two males and two females were
                                                         considered as having fair oral hygiene.
                                                         The trainers as well as the parents
                                                         reported that these children do not mind
                                                         brushing their teeth and sometimes they
                                                         are able to brush by themselves. Difficulty
                                                         in practicing oral hygiene was reported by
                                                         the trainers and parents in males more
                                                         than females and in the older age group
                                                         (9 years and above). Four males and 2
                                                         females had clear protrusion of the upper
                                                         jaw associated with a mouth breathing
anterior region due to repeated picking                  habit. The results are illustrated in Table
with his nail. Another male reported that                2.
he had a habit of pinching himself and the
                                                            The hard tissue assessment showed
others when he was angry. Two of the
                                                         that thirteen children (65%) had multiple
females and one male children showed
                                                         decayed and untreated teeth (49
signs of ulcers in the lips and tongue
                                                         permanent and 27 primary). Only 6
regions which were difficult to diagnose
                                                         children (30%) had fillings in their teeth
as either traumatic or aphthous ulcers
                                                         (6 permanent and 10 primary), and five
(Table 1).
                                                         children (25%) showed no signs of clinical
   The parents of the 6 (30%) children with              decay or fillings. The mean DMFT score
no signs of trauma reported that their                   was 1.6 and 7.25, whereas, the mean
children do not practice self injury habits.
On the other hand, four of the males
expressed their anger with peculiar
repetitive hand movements and
hyperactivity without hurting themselves
or the others. The rest of the children had
repeated habits which were similar to
those of normal children such as nail
biting, grinding of teeth at night (Table 1).
   The soft tissue assessment which
included evaluation of oral hygiene and
gingival status of the participating

                      Saudi Dental Journal, Volume 17, No. 3, September - December 2005
Oral health status, dental needs, habits and behavioral attitude towards dental treatment of a group of autistic children in Riyadh, Saudi Arabia
MURSHID                                                                                        136

dmft was 3.62 and 1.0 for the males                        Regarding the behavior of the children
and females, respectively. The overall                  during the dental examination (Table 5),
means DMFT was 2.75 and the dmft was                    the results show that 9 (45%) of the
3.1(Table 3).                                           children were definitely negative, 8 (40%)
                                                        were negatively and 3 (15 %) reacted
                                                        positively to dental examination according
                                                        to the modified behavioral scale of Frankl
                                                        and Wright.26 The children showed a great
                                                        a mount of fear towards the dental team
                                                        and a great resistance to the clinical
                                                        examination which was observed more in
                                                        the males than in the females.

    Parents’ responses to the questionnaire
regarding dental visits (Table 4) indicated
that 13 (65%) of the children had been to
a dental clinic and had history of
treatment and follow up while 7 (35%)
other children did not make any previous
dental visits. Six of the thirteen families
who went for dental appointments had
tried several times but they faced great
difficulty with their children and only
minimum or no treatment could be                           The use of “Tell-Show-Feel and Do”
performed under regular dental setting.                 technique was not effective with the
This made the parents hesitant to take                  majority (85%) of the children even with
their children to the subsequent                        the trainers’ help and the introductory
appointments. Only seven children had                   visit of the team members to the center
managed to receive dental treatment, four               before the day of the clinical examination.
were treated under General anesthesia                   The children were brought to the room
and 3 children were treated under local                 with their trainers and each one of them
anesthesia with nitrous oxide and                       was informed by his/her trainers about
physical restraint. The parents of the                  the procedure and asked to cooperate.
seven (35%) children who had never been                 During the clinical examination, the
to a dental clinic attributed this to their             children were resisting and fighting,
children’s difficult behavior and lack of               refusing to open their mouths. Only 3
compliance even during homecare. This                   children (2 males and one female) showed
led the parents to believe that nobody could            positive behavior and they were willing to
manage to treat their children and so they              open their mouths for only short periods
depended on home dental care only.                      of time without too much resistance.

                     Saudi Dental Journal, Volume 17, No. 3, September - December 2005
137                                               ORAL HEALTH STATUS AND BEHAVIOURAL ATTITUDE

                                                        group showed more males registered in
                                                        the center than females, which might
                                                        reflect the higher prevalence of autism
                                                        in males as it was reported in other
                                                        studies around the world.3,12 With regard
                                                        to self injurious behavior, the findings are
                                                        in agreement with the findings of
                                                        Lindemann that most of the children
                                                        practice self injuries behavior (SIB) which
             DISCUSSION                                 range from self-pinching or scratching to
                                                        severe self-biting or head banging.27 None
   The need for baseline information                    of the children in the present study
regarding the oral health status of                     showed severe SIB to the extent of that
children with autism in Saudi Arabia is                 reported by Medina et al group, where a 4
becoming clearly essential. The published               year old autistic girl used to self extract
information through the Saudi Autism                    her own primary teeth.13 Only one male
Society and the different rehabilitation                in this study showed a history of picking
centers regarding these children was not                his gum in the upper canine area and
enough to provide a clear perspective                   which caused a mark but without major
about the oral health status of children                damage similar to the case reported by
with autism in Saudi Arabia. This                       Johnson.28
particular autistic center was chosen                      The results of the gingival status of the
because of many reasons. It was the first               children showed that all the children had
established center especially for autistic              generalized gingivitis which could be
children in Riyadh, the geographic location             related to many reasons such as the
in the middle of Riyadh the capital is                  irregular brushing habits because of the
suitable, and for the availability of                   difficulties the trainers and the parents
different rehabilitation facilities, special            encountered when they brushed the
education certified trainers, and the                   children’s teeth. It could also be due to
range of the children’s age groups in                   lack of the necessary manual dexterity of
addition to the principal trainers and                  autistic children during brushing by
parents’ cooperation, the choice of the                 themselves, which made their tooth
center was appropriate.                                 brushing inefficient. Furthermore, the
   The history of scars and trauma                      findings of this study reflect poor dental
obtained during the clinical examination                awareness, a lack of dental education and
was cross-checked with the parents’                     deficiency in receiving oral hygiene
response for any possible findings of child             instructions from dental staff. Care-givers
abuse or child neglect. The results showed              need to know the different techniques
that all the scars or signs of trauma were              and materials of tooth brushing with
due to repeated self injuries according to              emphasis on behavior modification to
the parents’ report which was in harmony                control the behavior of the children as well
with the trainer’s response.                            as diet control and regular dental visits.
   The results of this study showed                     Another possible explanation of the
some similarities and differences in                    presence of generalized gingivitis might
oral health status, dental needs and                    be the side effects of medications used
behavior of this group of Saudi autistic                to control the manifestations of
children when compared to other autistic                autism. Examples are hyperactivity
children around the world. The studied                  (methylpheniadate), repetitive behaviors

                     Saudi Dental Journal, Volume 17, No. 3, September - December 2005
MURSHID                                                                                          138

(fluoxetine, sertraline, and pimozide) and                  The difficulties in controlling children
aggressive behaviors (lithium, valproate).               with autism were reflected in the results
Although, the long term effects of                       of the previous dental experience where
instituting these medications in young                   nitrous oxide, physical restrain and
children remain unknown, it is reported                  general anesthesia were used to control
that these antidepressants inhibit certain               the children’s behavior. The findings also
metabolic pathways and certainly have                    show that most of the children had
different side-effects.29 It is essential that           negative to definitely negative reaction to
every dentist dealing with autistic                      the examination which was conducted
children should be familiar with the                     within an area familiar to them and
manifestations of the condition and its                  among their trainers. Our findings were
associated features and should be familiar               in agreement with other studies
with the used medications to evaluate any                conducted in the western world by Klein
possible side effects that may cause                     and Backman.3, 8
untoward orofacial and systemic reactions                   Therefore, it is important to obtain as
or precipitate adverse interaction with                  much information as possible about every
dental therapeutic agents. Even for the                  case of autism. A careful review of the
four children who were reported to be                    medical and dental history, the behavior
cooperating with the daily brushing they                 of the child during the clinical
had generalized gingivitis because they                  examination and the behavior of the child
were brushing only once a day and 3 of                   in general are essential. More studies
them had protrusion and incompetent lips.                should be conducted about children with
This made them mouth breathers causing                   autism in Saudi Arabia. The studies
gingival inflammation especially in the                  should include the rest of the
upper anterior areas.                                    rehabilitation centers around the country
   Regarding the caries prevalence of this               to provide better information regarding
                                                         autism in the Kingdom.
group of children, the results showed that
the mean dmf, and DMF for all the subjects
were 3.1 and 2.75, respectively. This level                              CONCLUSIONS
of dental caries is considered moderate
according to the WHO classification.23 It                   The findings of this study are limited to
would not be accurate to compare the                     one rehabilitation Center in Riyadh and to
results of the male and female subjects                  the convenient sample size; consequently
separately due to the small number of                    the results should be interpreted
female subjects in the study, but                        accordingly. Therefore, within the limits of
comparing the results of all the subjects                the present study design, the following
with other studies conducted with different              conclusions could be made:
groups of healthy children in Riyadh (dmft
= 5.0) area show a lower caries prevalence               •     The oral health status of the autistic
in the autistic study group.30 This finding                    children did not show significant
would be in agreement with Karmen and                          differences from the international
                                                               groups reported in the previous
Kopel findings who reported lower caries
                                                               studies.
prevalence in autistic children. 19, 20
However, the differences observed in                     •     The autistic children in this study
caries prevalence can not be generalized                       showed similar repetitive behavior and
because of the convenience sample of                           self injuries habits as other autistic
children.                                                      children reported around the world.

                      Saudi Dental Journal, Volume 17, No. 3, September - December 2005
139                                                   ORAL HEALTH STATUS AND BEHAVIOURAL ATTITUDE

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                         Saudi Dental Journal, Volume 17, No. 3, September - December 2005
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