Hey,

With 300 marks, you will get a rank between 246358-262168. You can check it here https://medicine.careers360.com/articles/neet-result-marks-vs-rank

Based on previous year cut off, you will not get a ESIC dental college through the mentioned quota. But you have a chance of getting the following dental colleges through All India Counselling for Deemed Universities -

• MM College of Dental Science, Mullana
• Yenepoya Dental College, Yenepoya
• Shree Balaji Dental College, Chennai
• Institute of Dental Sciences, Bhubaneswar

Now, cut off varies every year as it depends on a number of factors such as number of seats available and the total number of qualified candidates. To get a list of colleges in which you have a chance of getting MBBS/BDS seat, you can use NEET College Predictor https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer