Exposure Dietary factors and Outcome Periodontal disease

My studies are Cross-sectional study, experimental study and case-control study on Exposure-Dietary factors and Outcome-Periodontal disease 

Also describe three public health interventions, programs or messages that should be implemented based on your literature review

This additio include the following:

A statement of what the next step would be in your investigation (this should be informed by the literature review you conducted)

The type of study(ies) you would conduct.

Why y0u chose this type of study.

The population you would use to conduct your study and how y0u would choose your study sample.

What additional information would be gained from this study that was not in the literature you reviewed.

The methods y0u would select to collect your data.

Why y0u selected the methods you did.

A description of how y0u would go about collecting data using the methods you selected.

How would using this data collection method allow you to obtain the data you need to c0mplete y0ur study.

The outcome measures you would use (e.g., odds ratio, anecdotal evidence, prevalence)

How would these outcome measures further the understanding of this exposure-outcome pair?

What would y0u expect these outcome measures to show (you may include your hypotheses)?

Descriptions of three public health interventions, programs, or messages that feel should be implemented based on the evidence y0u collected from the articles y0u reviewed. These should take place in (one in each setting):

A community setting (example: involving a town)

An institutional setting (example: in a jail)

Another setting that y0u feel it would be most useful

Exposure: Dietary factors

Outcome:  Periodontal disease

REFERENCE:

Cross-sectional study: https://doi.org/10.3390/nu13114167

Experimental study: https://doi.org/10.3390/jcm10020197

Cross-sectional study: https://doi.org/10.1186/s12903-022-02416-7