In the current study, more than 60% of respondents used toothpaste and a toothbrush for cleaning their teeth, compared to toothpaste and toothbrush with floss, miswak, no brushing, or other products. A previous study by Hussain et al. (2018) found that most participants (88%) used a toothbrush to clean their teeth, 5.5% used toothpowder, 5% used their finger, and 1.5% did not use any method for cleaning their teeth [
11], which was consistent with the study by Al-Qahtani et al. (2020). Furthermore, 79.4% of schoolchildren used a toothbrush and toothpaste, whereas 17.8% used miswak for cleaning their teeth [
12]. A similar study, by Almulhim (2016) in Riyadh City, showed that 82% of respondents used a toothbrush and 4% used miswak, while 3% used dental floss [
13]. An alternative study has been conducted, by Elsabagh et al. (2018), on oral hygiene knowledge, attitude, practice, and self-perception of personal dental appearance among Majma’ah University female students in the Kingdom of Saudi Arabia. They found that only 36% of students used a brush and dental floss for tooth cleaning [
14]. Conversely, the results of the study by Hammadi et al. (2020) in the southern region evaluated the types of oral hygiene aids used by participants; these included toothbrush (46.5%), miswak (8%), and both toothbrush and miswak (44.7%). A similar study carried out in Jeddah City revealed that 84% of participants used a toothbrush, 40% used miswak, and 20% used dental floss [
15]. According to the study of Almassri et al. (2019), 971 (55%) participants used a toothbrush and toothpaste to clean their teeth, while 234 (23%) used mouthwash, and 177 (17%) used miswak [
16]. In the current study, 33% of males brushed their teeth once a day and 34% of females brushed their teeth twice a day, while the study by Hussain et al. (2018) revealed that 65% of the participants brushed only once daily, 27.5% brushed twice daily, 3.5% brushed occasionally, and only 4% brushed more than twice daily [
11]. Another study by Elsabagh et al. (2018), on oral hygiene knowledge, attitude, practice, and self-perception of personal dental appearance among Majma’ah University female students, showed that 42.4% brushed twice a day, with 29% brushing for 2 min. This finding is similar to that in India, where 50.4% of respondents have been reported to brush their teeth twice a day—which is the international endorsement of brushing—and 83.9% did not use dental floss [
14]. Another study by Al-Qahtani et al. (2020) found that 33.1% of schoolchildren brushed their teeth daily; among these, 50.2% brushed their teeth once daily, whereas 35.8% brushed their teeth twice daily [
12]. The study by Al-Hammadi et al. (2020) reported that 28.2% brushed once daily, 37.6% brushed twice daily, 28.4% brushed whenever required, and 5.9% brushed infrequently. In the present study, the prevalence of daily brushing was similar to that reported in the study conducted to assess the level and aspects of knowledge, attitude, and practices related to oral health among pilgrims visiting Madinah: 21.2% participants brushed once a day, 30.7% brushed twice a day, and 8.4% never brushed [
15]. In a study by Almassri et al. (2019), about 381 (39%) patients cleaned their teeth twice a day, followed by 329 (33%) subjects who cleaned their teeth once a day [
16]. Al-Hammadi et al. (2020) showed that 84.7% of participants preferred to continue using miswak in combination with other teeth cleaning methods that were beneficial [
15], in agreement with the finding of the study conducted by Darout et al. (2016) in the Jazan region in Saudi Arabia. This study concluded that the miswak stick was equally used as a toothbrush for oral hygiene among secondary school students [
17]. In our study, the majority of the study subjects from all regions used a medium brush, except for those in the southern region, who tended to use a soft brush. According to Hussain et al. (2018), 45% of respondents used a medium brush and 35% used a soft brush [
11]. The study by Qahtani et al. (2020) demonstrated that, among those who used a toothbrush, about 54.8% did not know the type they used, while only 30.1% of the schoolchildren in the study used a soft brush [
12]. A similar study by Almulhim (2016) revealed that 27.35% of fathers and 37.35% of mothers reported that the soft type was the most commonly used brush, while 0.66% of mothers answered that the most commonly used was the hard brush, showing a highly statistically significant difference between fathers and mothers (
p < 0.008) [
13]. According to sex, age group, region, and education level, the subjects predominantly used a horizontal brushing technique, except for the postgraduate and above education level and northern region people of Saudi Arabia, who used a vertical brushing technique. A study by Darout et al. (2016) in the Jizan region, Saudi Arabia, found that less than half of both males and females who used a toothbrush applied both horizontal and vertical methods [
17]. On the other hand, Almassri et al. (2019) reported that 570 (46%) of patients used the toothbrush in a circular motion while brushing their teeth [
16]. The study by Graça et al. (2019) showed that, although fluoride toothpaste was widely used by participants (814; 93.2%), some difference was noted in Romania, where this type of toothpaste was not used as much as in the other countries (37; 8.1%). Interestingly, whitening and desensitizing toothpastes seemed to be popular among adolescents in Portugal and Romania (
p < 0.001) [
18]. Agrawal et al. (2020) found that the majority of individuals (39.3%) chose their toothpaste based on cost, followed by the taste of the toothpaste (34%) [
19]. In the current study, we found that the subjects changed their brush every 3 months. Graça et al. (2019) showed that Portuguese participants changed their toothbrush less often than their international counterparts (
p < 0.001). [
18] In this study, a total of 64% of females and 60% of males displayed a perception and knowledge on the use of dental floss or any other device to clean between the teeth. Conversely, in the study by Kamil et al. (2017), in Jizan, Saudi Arabia, among 15–34-year-old individuals, only 323 (21.5%) used interdental cleaning aids; of these, only 50 used these aids regularly, while the others used them intermittently. A total of 854 (53.5%) subjects chewed miswak, of which 20 chewed only miswak, while the majority (
n = 834) practiced toothbrushing in addition to miswak [
20]. Chakraborthy et al. (2017) demonstrated that only a few subjects used dental floss for interdental cleaning [
21], similar to the findings of a study among participants visiting a dental college in India (Hussain et al., 2018) [
11]. In our study, 48.50% of males and 49.10% of females cleaned their tongue with the same brush without using any tongue scrubber or other aids. The study by Hussain et al. (2018) showed a lack of awareness among participants about basic oral health maintenance techniques, such as tongue cleaning [
11]. In a study by Kamil et al. (2017), when students were asked if they knew any ideal aid that could clean dental plaque from interdental spaces, only 25.8% answered positively. In the present study, 21.2% of the participants had heard about dental floss, and 4.3% knew that dental floss is essential for removing plaque and debris from the interdental area. However, only one participant had seen a person using dental floss, while 1.8% knew that the use of dental floss should be used customarily and daily along with tooth brushing, as the remaining participants used it to remove interdental food debris. Furthermore, 75.3% of the participants in the current study believed that dental floss harms the interdental gingiva; this proportion was higher than that (24.3%) reported by Shazia et al. (2016) [
20,
22]. Compared to the study conducted in Portugal, Romania, and Sweden (Graça et al., 2019), and that carried out among adult population in Saudi Arabia (Almassri et al., 2019), more than half of the participants (469; 54%) had never used dental floss. A maximum of 406 (35%) subjects used dental floss as a secondary method for plaque control, while 306 patients (25%) had used toothpicks [
16,
18], which was lower than the figure in the current study, wherein 41% of males commonly used a toothpick to clean the interdental area and 42% of females used dental floss. Moreover, 21% and 30.30% of females wore a fixed partial denture (FPD). In the study by Harini et al. (2019), 40% of the patients were females and 60% were males, where 65% of the patients had a FPD. In our study, 20.60% of males and 27.60% of females used special cleaning aids to clean their prosthesis, which was higher than that (10%) in patients in the study by Harini et al. (2019) who used such cleaning aids. Furthermore, 50% of the patients used chlorhexidine, 40% used floss, and 10% used an interdental brush to clean their prosthesis [
23].