KCL is the second best Dental School in the UK (after UCL) according to Edurank. Bristol is 10th. (Cambridge is 5th, Oxford 12th).
But Student Satisfaction for the subject is only 62% at KCL (the lowest of all UK Dental Schools), 81% at Bristol, according to The Complete University Guide.
Average entry grades for the subject are only 1% higher at KCL (74%) than Bristol (73%).
And for the university as a whole, average entry grades are 82% at Bristol, 81% at KCL. If KCL is harder to get in it'll be because of the University of London name, and being in London, or its research quality, making it attract more applications, particularly from international students who make up at least 39% of its students (Bristol has 30.1%), not any major, if any, difference between the quality of the students. I can't find figures on how many students are at each of their dental schools.
Bristol has 6% Mature Students and Kings College London has 17% Mature Students, according to Whatuni.com. 74% of students at Bristol are undergraduates whereas 58% at KCL are undergraduates.
So there are likely to be just over double the percentage of mature undergraduate students at KCL than there are at Bristol, although there may be far less difference with some Faculties, and if one dental school is larger it might not be as noticeable within it because the number of mature students would be correspondingly larger.
In 2016, Times Higher Education published data on UK universities with the highest percentage of staff with teaching qualifications. At KCL, at least 41% were known to have a teaching qualification and at least 35% were known not to have a teaching qualification.
At Bristol, it was 31% and 40% respectively.
Which, because of the unknowns, means that either university might have the highest percentage of staff with teaching qualifications.
Anyway, if percentage of staff with teaching qualifications always made a difference to student satisfaction, Manchester (68%) probably wouldn't be second from bottom for student satisfaction for Dentistry.
I hope that someone from Kings will reply here to give some indication or context why Student Satisfaction is ranked so low for this subject compared to Bristol.
Even overall as universities, KCL is on 74% student satisfaction, Bristol 75%.