Table 1.

Characteristics of included articles (n = 12)

Study	Location	Study Design	Study Purpose	Participants
				Age	Gender	N	Nationality
Fennell-wells (2020) [12]	UK	A review of the asylum process in the UK, the oral health status of child asylum seekers and the challenges in accessing dental services has been conducted.	To provide a summary of the oral health status of child refugees and asylum seekers, and to describe their access to health services	N/A	N/A	N/A	N/A
Freiberg (2020) [28]	Halle (Saale), Germany	Retrospective observational study	To quantify the utilization of dental health services, the complaints leading to visits at the dental clinic, the diagnoses made by the dentist, and the treatments resulting from it.	20–34 Years old	Males and females	4107	Syria, Afghanistan, Iran, Somalia, Guinea-Bissau, Russian Federation, Eritrea, India, Kosovo, Benin, others
Al-ani (2020) [9]	Four federal states in Germany	Quantitative cross-sectional study	To assess oral health, caries prevalence, and subsequent complications among recently arrived refugees, and to compare these findings with the resident population.	3–75+ years old	Males and females	544	Syria, Afghanistan, and Iraq Egypt, Mauritania, Lebanon, Palestine, Morocco Kosovo, Albania, Ukraine, Armenia, Serbia, Cheek Republic, Georgia, and Macedonia Iran, Pakistan, Thailand, Azerbaijan, Tajikistan, and Russia Eretria, Ghana, Nigeria, Ethiopia, and So
Høyvik (2019) [8]	Oslo/Norway	Twelve qualitative interviews as well as participant observation	To explore experiences of irregular migrants related to their oral health and their access to dental care	29–50	Males and females	10–20	Not mentioned
Solyman (2018) [11]	Germany	Quantitative study: Cross-sectional (and structured interview conducted)	To determine the status of oral health among newly arrived refugees and to explore their knowledge, attitude and practices on oral hygiene	18–60 years old	Males and females	386	Syria and Iraq
Zukanović (2018) [33]	Canton Tuzla, B&H	Qualitative study; Narrative Interviews	To evaluate the DFA presence and the most common reasons for dental fear and anxiety in displaced persons	between 35 and 44 years old	males and females	310	Several cities of Canton Tuzla Bosnia and Herzegovina.
Goetz (2018) [15]	Schleswig-Holstein, Germany	Pilot study with a cross-sectional	To evaluate the oral health of refugees and to estimate the costs of oral care.	a mean age of 28 years old	Males and females	102	Afghanistan, Iraq, Syria, Eritrea, Yemen, Armenia, Somalia, Iran, Chechnya
Riatto (2018) [10]	Melilla, Spain	Quantitative study/Correlation questionnaire	To determine the oral health status of Syrian immigrant children refugee at the Center for Temporary Stay	5–13 years old	males and females	156	Syria
Furnadzhieva (2017) [30]	Baden-Württemberg, Federal Republic of Germany.	Qualitative study	To study the experience of dental practitioners in Germany in treating refugees at outpatient medical facilities	5 to 75 Years old	N/A	100	N/A
Mattila (2016) [32]	Finland	Pilot study	To investigate self-reported oral health, oral health habits, dental fear and use of dental health care services among asylum seekers and immigrants	17 to 53 Years old	Males and females	38	15 different countries
Angellilo (1996) [29]	Catanzaro and Crotone. /Italy	Quantitative study	To assess the caries prevalence, oral hygiene status, periodontal health and the treatment needs in immigrants and refugees	18–44+ years old	Males and females	252	Senegalese, Yugoslavs, Moroccans
Zimmerman (1995) [31]	Sweden	Quantitative-Cross Sectional study	To describe and analyze consumption of dental care in different refugee groups	23–34 years old	Males and females	2489	different countries

N number of participants, N/A not applicable