Ladies and gentlemen, dear ORCA friends,

The local Organizing Committee would like to invite you to join us at the 69th ORCA Congress which will take place from 29 June - 02 July, 2022 in Cagliari, Sardinia (Italy).

A decision about the format (in-person or virtual only) will be made in early 2022.

Please note the extended abstract submission deadline of 16 January 2022.

Further detail will be published here in due course.


General Information

Letters of Invitation

If participants require a letter of invitation (e.g., to obtain visa or to satisfy their institution’s requirements), the ORCA Board will provide one on request. Please contact the Secretary-General, Assoc. Prof. Dr. Monique van der Veen (E-mail: in good time. The provision of such a letter does not imply that travel expenses will be covered by ORCA.

Abstract Submission Guidelines

Abstracts must be submitted via Please see the 'Abstract submission and guidelines' submenu for further detail.


Further information will be available here in due course.


“And suddenly there is Cagliari: a naked town rising steep, steep, golden looking, piled naked to the sky from the plain at the head of a formless hollow bay. It is strange and rather wonderful, not a bit like Italy. The city piles up lofty and almost miniature, and makes me think of Jerusalem: without trees, without cover, rising rather bare and proud, remote as if back in history, like a town in a monkish, illuminated missal. One wonders how it ever got there. And it seems like Spain or Malta: not Italy.”

David Herbert Lawrence, Sea and Sardinia, 1921

Cagliari, formerly called Caralis, was the capital of the province of Sardinia and Corsica during the Roman period and later capital of the Kingdom of Sardinia. Today the capital of Sardinia and expression of the Mediterranean atmosphere, is a fascinating destination for its millennial history, for its archaeological and artistic museums, for the courtesy and hospitality of its inhabitants, for the food and wine specialties.

The Preliminary ORCA Congress Program will be available here in due course.

Accommodation information will be available here in due course.

Key Dates


December 08th, 2021 Website launched
December 08th, 2021 Abstract submission opened
January 16th, 2022 Abstract submission deadline (extended)
February 28th, 2022 Acceptance or rejection emails sent to abstract authors
March 06, 2022 Deadline for abstract revisions
June 05, 2022 Deadline for upload of posters and slides for oral presentations
tbd Deadline for abstract withdrawal
tbd Early registration deadline
tbd Standard registration deadline

Pre-ORCA Symposium (tbd)

June 29th - July 2nd, 2022 69th ORCA Congress
July 1st, 2022 ORCA Members General Assembly
July 2nd, 2022 ORCA 2022 Saturday Afternoon Symposium


The deadline for submitting an abstract has been extended to 16 January 2022.

Abstracts must be submitted via the ORCA abstract submission system (see below for guidelines):

All abstracts will be reviewed by the Scientific Program Committee. Authors will be notified of acceptance or rejection of their abstract by 28 February 2022 and at that time may be asked for revisions. Any such revisions must be submitted by 6 March 2022. Abstracts cannot be withdrawn after that. If an abstract is not withdrawn by that date, and the paper is not presented, the named presenter will not be allowed to present any paper at the following ORCA Congress.

Presenters should note the following:

  • The Congress focuses on research into dental caries and related topics.
  • Abstracts must describe research that has not been published or presented already and has not been submitted to another meeting at the time of submission for the ORCA Congress.
  • Authors may present only one paper at the Congress, but may co-author other papers.
  • The presentation at the Congress must conform to the material in the published abstract. Once submitted, abstracts can be edited within the submission system until 16 January 2022 and during the period for revisions from 28 February to 06 March 2022.
  • Those who submit an abstract are committed to present the paper in person at the Congress. All presentations are conducted as poster sessions and include the presence at the poster at a set time as well as a short oral presentation and discussion in the audience.
  • Posters and Slides for the oral presentation must be uploaded in the submission system not later than 05 June 2022. Two slides are possible, but animations are not allowed. For further details, please see the Congress webpage

Presenters should:

  • Ensure that they will have the necessary funds to attend the Congress
  • Apply for any necessary visas in good time, to ensure that they can travel to the Congress to present their paper
  • Ensure that any abstract describing commercially-funded research has been approved by the funding company before submitting it
  • Write their abstract exactly according to the instructions given below and are urged to seek help from the Master Abstract provided within the submission system.

Presenters will be asked for the following items:

  • Surnames and initials of the presenting author, corresponding author and other authors
  • The email address of authors
  • Brief affiliations of authors (institute, city, country only)
  • Title of abstract. This should be 15 words or less
  • Text of abstract. This should be 280 words or less and should state: the aim of the work; the experimental approach; the main results; the conclusions. The results must include key numerical and statistical data, but do not attempt to report data exhaustively; SI units should be used. The conclusions should be explicit. Vague expressions such as ‘the results will be discussed’ could result in rejection of the abstract. Include references only when they are essential and follow an abbreviated Caries Research format, but omitting the authors’ initials and the title, and using ‘et al.’ for multiple-author works. Example: [Main et al.: J Oral Rehab 1983;10:307-313]. Tables, photographs, graphs or diagrams are not allowed. Acknowledge sources of funding.
  • One of the following key phrases, which are required to assist programming: Behaviour; Clinical studies; De- and Remineralization; Diagnosis; Education; Epidemiology; Erosion; Fluoride; Hard tissues; Microbiology; Public Health; Pulp-dentinal Reactions.

Poster instructions will be available here in due course.

Details about the online portion of the 69th ORCA Congress will be available here in due course.

A link to the registration site will be published soon.

The abstract presentation programme will be made available here in June 2022.

A pdf file containing all abstracts accepted for the 69th ORCA Congress will published in Caries Research and made available here for download in June 2022.

Contact details for the technical organisers of the 69th ORCA Congress will be available here in due course.

Sponsors & Exhibitors

During the Congress, there will be an exhibition of manufacturers of equipment, devices and products and of other companies related to dental medicine.

Further details will be published here in due course.

Social Programme

Further detail will be published here in due course.


Welcome reception

Wednesday 29th June

Time: tbd

Place: tbd

Dress code: Casual



Opening Ceremony

Thursday 30th June

Time: tbd

Place: tbd



Formal dinner

Friday 1st July

Time: tbd

Dinner: tbd

Dress code: Usual dress code applies for the gala dinner. Ties are not required given the hot weather.


Abstracts & Prizes


Poster viewing and presentation                            

Further detail will be made available here in due course.

Yngve Ericsson Prize

The Yngve Ericsson Prize is awarded once every three years in acknowledgement of outstanding contributions to prevention of oral diseases.

Established in 1963, The Swedish Patent Revenue Fund for Research in Preventive Odontology was originally founded on royalties from patents, primarily patents for addition of fluoride to dentifrices to prevent or arrest dental caries. The Fund is the largest non-public granting source for dental research in Sweden through its continued support of research into prevention of dental and oral diseases. This international Prize is named after its founder.

The prize awardees are selected by a five-member Prize Committee appointed by the Patent Revenue Fund and ORCA. The Prize will be presented at the 69th ORCA Congress in Cagliari, Sardinia at the Opening Ceremony (Thursday, 29th June).

ORCA Nathan Cochrane Young Scientist’s Award

The ORCA Junior Scientist Award was inaugurated in 2007 as the Young Investigator’s Award, and was renamed the "ORCA Nathan Cochrane Young Scientists' Award" at the General Assembly of July 4, 2014 in Greifswald, Germany. This prize is aimed at encouraging young researchers, and is awarded each year at the Closing ceremony of the ORCA meeting. The prize winner receives a certificate and is entitled to receive reimbursement of the congress fees for a future ORCA Congress. This year candidates will be presenting their posters in the Thursday afternoon session. The winner will be announced at the Closing Ceremony (Saturday, 02 July).

ORCA Conference Travel Fellowships

These fellowships aim to assist attendance at an ORCA Congress. Researchers in the field of caries or related subjects will be eligible, and preference will be given to workers from underprivileged countries. Awardees will be mentioned at the Opening Ceremony.

Details about poster viewing and the poster presentation sessions will be available here in due course.