Evidence map›Paper›PMID 27793138›Full record

Trial reportBMC oral health2016

Consequences of orthodontic treatment in malocclusion patients: clinical and microbial effects in adults and children.

Li Guo, Ying Feng, Hong-Gang Guo, Bo-Wen Liu, Yang Zhang

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC oral health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 5 pooled it
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 5 syntheses or guidelines pooled it, 79 citations in OpenAlex.

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  6. [Comparative study on the clinical performance of concealable traction hook spherical buccal tubes versus conventional rectangular buccal tubes].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2026
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  13. Exploring the Role of Oral Microbiota in the Pathophysiology and Treatment of Bruxism.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Li GuoDepartment of Stomatology, Ninth Hospital of Xi'an, No. 151, 2nd Ring Road East, Xi'an, 710054, People's Republic of China. gl1092740779@sina.com.
Ying FengDepartment of Stomatology, Ninth Hospital of Xi'an, No. 151, 2nd Ring Road East, Xi'an, 710054, People's Republic of China.
Hong-Gang GuoDepartment of Orthopedic, Engineering University Hospital of PAPF, Xi'an, 710086, People's Republic of China.
Bo-Wen LiuDepartment of Orthodontics, School of Stomatology, China Medical University, Shenyang, China.
Yang ZhangDepartment of Orthodontics, School of Stomatology, China Medical University, Shenyang, China.
China Medical University · CNXi'an University of Finance and Economics · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMalocclusion is a common disease of oral and maxillofacial region. The study was aimed to investigate levels changes of periodontal pathogens in malocclusion patients before, during and after orthodontic treatments, and to confirm the difference between adults and children.

methodOne hundred and eight malocclusion patients (46 adults and 62 children at the school-age) were randomly selected and received orthodontic treatment with fixed orthodontic appliances. Subgingival plaques were Porphyromonas gingivalis (P.gingivalis), Fusobacterium nucleatum (F. nucleatum), Prevotella intermedia (P. intermedia) and Tannerella forsythensis (T. forsythensis) collected from the observed regions before and after treatment. Clinical indexes, including plaque index (PLI), gingival index (GI), sulcus bleeding index (SBI), probing depth (PD) and attachment loss (AL) of observed teeth were examined.

resultsThe detection rates of P.gingivalis, F. nucleatum, P. intermedia and T. forsythensis increased from baseline to the third month without significant difference, and then returned to pretreatment levels 12 month after applying fixed orthodontic appliances. Adults' percentage contents of P.gingivalis, F. nucleatum, P. intermedia and T. forsythensis were significantly higher than those of children at baseline and the first month, but not obvious at the third month. PLI and SBI were increased from baseline to the first and to the third month both in adults and children groups. Besides, PD were increased from baseline to first month, followed by a downward trend in the third month; however, all patients were failed to detect with AL.

conclusionsPeriodontal and microbiological statuses of malocclusion patients may be influenced by fixed orthodontic appliances in both adults and children, more significant in children than in adults. Some microbiological indexes have synchronous trend with the clinical indexes. Long-term efficacy of fixed orthodontic appliances for malocclusion should be confirmed by future researches.

Indexed as

Dental PlaqueDental Plaque IndexOrthodontic AppliancesAdultAggregatibacter actinomycetemcomitansChildHumansMalocclusionPeriodontal IndexPorphyromonas gingivalisPrevotella intermediaFixed orthodontic appliancesMalocclusionOrthodontic treatmentPathogens

Identifiers

PMID27793138
PMCPMC5084385
OpenAlexW2543698902

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.