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Research article
Hanna Elhassan Abdalla
Al-Neelain University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2498-4502
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: Molar incisor hypomineralization (MIH) has serious impact on oral health-related quality of life for a child, due to its effects on tooth structure, aesthetics and behavior of the child. The current study was designed to determine the prevalence, pattern and distribution of MIH in school children in Sudan.
Methods: This was a descriptive cross-sectional study involving 568 children, aged 8-11 years from schools in Khartoum State. Following collecting their socio-demographic data, the children were examined for hypomineralization on the 12 MIH indexed teeth, and assessed on the MIH pattern and distribution. The data collected were analyzed to obtain descriptive statistics, and the results related to the socio-demographic and other dental-related factors of the children using chi-square test and Spearman Rank Correlation, with the significant level set at P<0.05.
Results: The prevalence of MIH in the study population was 20.1%. The majority of cases had both permanent first molars (PFMs) and permanent incisors affected (12.5%). However, in 7.6% of the cases, only molars were affected. Even though more maxillary teeth were affected when compared to the mandibular teeth, there is no statistical significant difference between the occurrence of hypomineralization on mandibular and maxillary molars (P=0.22). Maxillary incisors were significantly more affected by MIH when related to the mandibular ones (P=0.00). Demarcated opacities were the commonest pattern of MIH defects (69.9%) in the experimental group.
Conclusion: The prevalence of MIH in Sudanese children was 20.1%. In both dental arches, the permanent molars and incisors were frequently affected, with the demarcated opacity type of MIH being the most common form of defect. Further studies are recommended to better understand the possible etiologies of MIH in Sudanese children.
Keywords
MIH, Prevalence, Pattern, Distribution, Sudanese children
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CURRENT STATUS: Published
View the published article at BMC Oral Health.
No community comments so far
Editorial decision: Accept
On 21 Dec, 2020
Editor assigned
On 17 Dec, 2020
Submission checks complete
On 17 Dec, 2020
Editor invited
On 17 Dec, 2020
Version 2
Posted 29 Oct, 2020
No comments provided
Reviewer #4 agreed
On 29 Nov, 2020
Review #4 received
Received 29 Nov, 2020
Editorial decision: Minor revision
On 29 Nov, 2020
Review #2 received
Received 17 Nov, 2020
Review #3 received
Received 01 Nov, 2020
Reviewer #3 agreed
On 30 Oct, 2020
Review #1 received
Received 29 Oct, 2020
Reviewers invited
Invitations sent on 27 Oct, 2020
Reviewer #1 agreed
On 27 Oct, 2020
Reviewer #2 agreed
On 27 Oct, 2020
Editor assigned
On 15 Oct, 2020
Submission checks complete
On 14 Oct, 2020
Editor invited
On 14 Oct, 2020
No comments provided
Editorial decision: Major revision
On 03 Sep, 2020
Review #2 received
Received 02 Sep, 2020
Review #3 received
Received 31 Aug, 2020
Reviewer #3 agreed
On 24 Aug, 2020
Reviewer #2 agreed
On 23 Aug, 2020
Review #1 received
Received 09 Aug, 2020
Reviewers invited
Invitations sent on 08 Aug, 2020
Reviewer #1 agreed
On 08 Aug, 2020
Editor assigned
On 15 Jul, 2020
First submitted
On 14 Jul, 2020
Submission checks complete
On 14 Jul, 2020
Editor invited
On 14 Jul, 2020
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A new preprint design is coming!
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See the published version of this preprint at BMC Oral Health.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Hanna Elhassan Abdalla
Al-Neelain University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2498-4502
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at BMC Oral Health.
No community comments so far
Editorial decision: Accept
On 21 Dec, 2020
Editor assigned
On 17 Dec, 2020
Submission checks complete
On 17 Dec, 2020
Editor invited
On 17 Dec, 2020
Version 2
Posted 29 Oct, 2020
No comments provided
Reviewer #4 agreed
On 29 Nov, 2020
Review #4 received
Received 29 Nov, 2020
Editorial decision: Minor revision
On 29 Nov, 2020
Review #2 received
Received 17 Nov, 2020
Review #3 received
Received 01 Nov, 2020
Reviewer #3 agreed
On 30 Oct, 2020
Review #1 received
Received 29 Oct, 2020
Reviewers invited
Invitations sent on 27 Oct, 2020
Reviewer #1 agreed
On 27 Oct, 2020
Reviewer #2 agreed
On 27 Oct, 2020
Editor assigned
On 15 Oct, 2020
Submission checks complete
On 14 Oct, 2020
Editor invited
On 14 Oct, 2020
No comments provided
Editorial decision: Major revision
On 03 Sep, 2020
Review #2 received
Received 02 Sep, 2020
Review #3 received
Received 31 Aug, 2020
Reviewer #3 agreed
On 24 Aug, 2020
Reviewer #2 agreed
On 23 Aug, 2020
Review #1 received
Received 09 Aug, 2020
Reviewers invited
Invitations sent on 08 Aug, 2020
Reviewer #1 agreed
On 08 Aug, 2020
Editor assigned
On 15 Jul, 2020
First submitted
On 14 Jul, 2020
Submission checks complete
On 14 Jul, 2020
Editor invited
On 14 Jul, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at BMC Oral Health.
Background: Molar incisor hypomineralization (MIH) has serious impact on oral health-related quality of life for a child, due to its effects on tooth structure, aesthetics and behavior of the child. The current study was designed to determine the prevalence, pattern and distribution of MIH in school children in Sudan.
Methods: This was a descriptive cross-sectional study involving 568 children, aged 8-11 years from schools in Khartoum State. Following collecting their socio-demographic data, the children were examined for hypomineralization on the 12 MIH indexed teeth, and assessed on the MIH pattern and distribution. The data collected were analyzed to obtain descriptive statistics, and the results related to the socio-demographic and other dental-related factors of the children using chi-square test and Spearman Rank Correlation, with the significant level set at P<0.05.
Results: The prevalence of MIH in the study population was 20.1%. The majority of cases had both permanent first molars (PFMs) and permanent incisors affected (12.5%). However, in 7.6% of the cases, only molars were affected. Even though more maxillary teeth were affected when compared to the mandibular teeth, there is no statistical significant difference between the occurrence of hypomineralization on mandibular and maxillary molars (P=0.22). Maxillary incisors were significantly more affected by MIH when related to the mandibular ones (P=0.00). Demarcated opacities were the commonest pattern of MIH defects (69.9%) in the experimental group.
Conclusion: The prevalence of MIH in Sudanese children was 20.1%. In both dental arches, the permanent molars and incisors were frequently affected, with the demarcated opacity type of MIH being the most common form of defect. Further studies are recommended to better understand the possible etiologies of MIH in Sudanese children.
Figure 1
Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
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